Canopy sleeve top-pulling releasing mechanism of parachute landing recovery device and unmanned aerial vehicle

Abstract

The invention provides a canopy sleeve top-pulling releasing mechanism of a parachute recovery device and an unmanned aerial vehicle, the canopy sleeve top-pulling releasing mechanism of the parachute recovery device comprises an outer parachute bag, a canopy sleeve, a main parachute top-pulling rope, a bag sealing ring, a first ring sleeve, a second ring sleeve, a third ring sleeve, a cleat rope, a hair pulling rope and a fixing pin, and the canopy sleeve top-pulling releasing mechanism of the parachute recovery device is linked with multiple components through cooperation of a three-ring mechanism; reliable unlocking after straightening of the canopy sleeve is ensured, the main parachute smoothly slides out for inflation, the problems that a traditional canopy sleeve type recovery parachute is stacked in parachute opening and unsmooth in procedure are solved, and the canopy sleeve type recovery parachute is simple in structure, high in reliability and suitable for various unmanned aerial vehicle recovery systems.

Description

Technical Field

[0001] This invention relates to the field of drone recovery, and more particularly to a parachute recovery device with a parachute canopy release mechanism and a drone. Background Technology

[0002] Parachute recovery, as one of the mainstream recovery methods for drones, is widely used in various missions such as reconnaissance, surveying, inspection, and emergency rescue. Its core advantages are that it does not require a dedicated take-off and landing site, has minimal landing impact, and can effectively protect the drone body and onboard equipment. The stability of the parachute opening sequence and the reliability of unlocking of the recovery parachute system directly determine the success or failure of drone recovery and are a key guarantee link in the closed loop of drone missions.

[0003] In traditional parachute recovery systems with canopy covers, the main parachute is usually stored inside the canopy cover. The canopy cover is often connected to the outer parachute pack and the top of the main parachute using simple rope knots or a single buckle, lacking precise linkage constraints and unlocking mechanisms. During actual recovery, various parachute opening failures are prone to occur due to multiple factors such as the drone's flight attitude, airflow disturbances, and the drone's inertia: First, the main parachute is prone to accumulating and knotting at the bottom of the canopy cover due to its own weight. During the unfolding and straightening phase of the canopy cover, it cannot simultaneously pull the top of the main parachute, resulting in the main parachute not being able to slide out smoothly in the initial opening stage, resulting in the "canopy cover pulling empty" phenomenon; Second, the timing of unlocking the connection between the canopy cover and the main parachute is uncontrollable. If unlocked too early, the canopy cover is not fully straightened, and the main parachute will be wrapped by the airflow and cause instability of the canopy; if unlocked too late, the canopy cover is easily torn due to excessive tension. At the same time, the main parachute is constrained for a long time, and local high temperatures are generated due to airflow friction, causing the canopy to be burned and its strength to decrease. In severe cases, it can directly lead to the failure of the canopy; Third, traditional connection structures have poor impact resistance. The huge pulling force at the moment of opening the canopy can easily cause the knots to slip off and the locks to jam, resulting in a high probability of unlocking failure. Moreover, they have poor adaptability and cannot meet the portability requirements of small and lightweight drones and the impact resistance requirements of large and heavy-duty drones.

[0004] Current industry improvements to parachute deployment smoothness primarily focus on optimizing canopy materials or designing the parachute pack shape. These efforts fail to address the core issue at the level of the linkage and constraint mechanism between the canopy cover, main parachute, and outer parachute pack. This results in traditional recovery parachute systems failing to meet the mission requirements of highly reliable UAVs, especially under complex weather conditions (such as strong winds and turbulence) or in emergency UAV landing scenarios. The risk of failure increases significantly, potentially leading to UAV damage, mission failure, and even crashes. Therefore, there is an urgent need to develop a compact, adaptable, and precisely timing-controlled linkage mechanism to reliably connect the main parachute top to the canopy cover during the canopy cover straightening process. This ensures precise unlocking after the canopy cover is fully deployed, guiding the main parachute to slide out orderly and inflate rapidly, fundamentally solving the pain points of traditional parachute deployment such as accumulation, timing disorder, and unlocking failure.

[0005] Therefore, it is necessary to study a parachute recovery device with a canopy release mechanism and a drone to address the shortcomings of existing technologies and solve or mitigate one or more of the aforementioned problems. Summary of the Invention

[0006] In view of this, the present invention provides a parachute cover release mechanism and a drone for a parachute recovery device. Through the coordination of three rings and the linkage of multiple components, it ensures reliable unlocking after the parachute cover is straightened, and the main parachute slides out smoothly for inflation. This solves the problems of parachute stacking and inefficient procedures in traditional parachute opening systems. The structure is simple and highly reliable, and it is suitable for various drone recovery systems.

[0007] On one hand, the present invention provides a parachute cover tether release mechanism for a parachute recovery device, the parachute cover tether release mechanism of the parachute recovery device includes an outer parachute pack, a parachute cover, a main parachute tether rope, a sealing ring, a first ring, a second ring, a third ring, a ram's horn rope, a pull rope, and a fixing pin; The outer umbrella pack has a first ring fixedly connected to both the front and back sides, the umbrella canopy has a second ring fixedly connected to the front side, and the umbrella canopy has a second ring fixedly connected to the back side and a third ring fixedly connected to the back side. The main umbrella top rope is located inside the umbrella canopy and has a top rope loop. The sealing ring passes sequentially through the second loop on the front of the umbrella cover and the top rope loop and extends to the back of the umbrella cover. The first loop on the front of the outer umbrella pack is engaged with the second loop on the front of the umbrella cover, and the first loop on the back of the outer umbrella pack is engaged with the second loop on the back of the umbrella cover. The two ends of the ram's horn rope pass sequentially through the extension of the sealing ring, the second loop and the third loop on the reverse side of the umbrella cover, and the fixing pin is connected to one end of the hair pull cord and passes through the end of the ram's horn rope to lock the ram's horn rope. After the pull cord is pulled out of the fixing pin, the ram's horn rope comes off, causing the sealing ring to be pulled away, thereby sequentially releasing the constraint on the top rope loop and the connection between the outer umbrella bag and the front of the umbrella cover.

[0008] In addition to the aspects and any possible implementations described above, a further implementation is provided in which the extension portion of the envelope specifically includes: The sealing ring passes through the second loop on the front of the umbrella cover and then enters the interior of the umbrella cover; the sealing ring passes through the top rope loop inside the umbrella cover; The free end of the sealing ring extends from the inside of the umbrella cover to the reverse side of the umbrella cover to form an extension through which the ram's horn rope passes. The two ends of the sheep horn rope pass sequentially through the extension of the sealing ring from the reverse side of the umbrella cover, and then through the second and third loops on the reverse side of the umbrella cover.

[0009] In addition to the aspects and any possible implementations described above, a further implementation is provided in which the ram's horn rope is a loop formed by folding it in half; the two ends of the ram's horn rope pass through the extension of the sealing ring, the second loop and the third loop on the reverse side of the umbrella cover to form an end loop structure; the fixing pin passes through the end loop structure to lock the ram's horn rope; after the fixing pin is pulled out, the two ends of the ram's horn rope disengage from the extension of the sealing ring under tension.

[0010] In addition to the aspects and any possible implementations described above, a further implementation is provided in which the main umbrella top rope is wound around and fixed to the top of the main umbrella; the main umbrella top rope forms top rope loops at both ends or appropriate positions; the sealing ring passes through the top rope loops to constrain the main umbrella top rope; and the top rope loops release the main umbrella after the sealing ring is removed.

[0011] In addition to the aspects and any possible implementations described above, a further implementation is provided in which the first loop on the front of the outer parachute pack is interlocked with the second loop on the front of the canopy cover to form a front connection; the first loop on the back of the outer parachute pack is interlocked with the second loop on the back of the canopy cover to form a back connection; and the back connection is maintained by the ram's horn rope.

[0012] In addition to the aspects and any possible implementations described above, a further implementation is provided, wherein the packet loop extraction specifically comprises: The sealing ring loses its restraint after the ram's horn rope comes off; The sealing ring is pulled out of the top rope loop to release the main umbrella top rope; The sealing ring continues to be pulled away from the second loop on the front of the umbrella cover; after the sealing ring is completely pulled away, the connection between the outer umbrella bag and the front of the umbrella cover is released.

[0013] In addition to the aspects and any possible implementations described above, a further implementation is provided in which one end of the hair-pulling cord is fixedly connected to the fixing pin; the other end of the hair-pulling cord is connected to the umbrella opening trigger mechanism; when the umbrella opening is triggered, the hair-pulling cord pulls and pulls out the fixing pin; after the fixing pin is pulled out, the ram's horn rope is disengaged.

[0014] In addition to the aspects and any possible implementations described above, a further implementation is provided in which the two ends of the ram's horn rope are passed through the third loop and then folded in half to form the end loop structure; the fixing pin passes through the end loop structure to prevent the ram's horn rope from loosening; and the end loop structure releases the two ends of the ram's horn rope after the fixing pin is pulled out.

[0015] In addition to the aspects and any possible implementations described above, a further implementation is provided in which the first ring, the second ring, and the third ring are metal rings or high-strength polymer rings, the sealing ring is a high-strength rope loop or belt loop, and the outer umbrella bag and the umbrella canopy are made of flexible fabric material.

[0016] In accordance with the aspects described above and any possible implementation, a drone is further provided, wherein the drone is equipped with the parachute cover release mechanism of the parachute recovery device.

[0017] Compared with the prior art, the present invention can achieve the following technical effects: 1. By interlocking the first loop on the outer parachute pack with the second and third loops on the canopy cover, combined with the sealing ring, the threading of the sheep's horn rope and the locking of the fixing pin, a reliable three-ring connection and release mechanism is formed. The structure is simple and the connection is firm. 2. The design of the sealing ring passing through the top pull rope loop ensures that the sealing ring releases the main umbrella pull rope only after the pull rope is activated and the fixing pin is pulled out, so that the canopy is pulled out after the canopy cover is straightened, ensuring the correctness of the opening procedure. 3. All components are made of high-strength materials, which can withstand the impact of parachute opening, and are suitable for various types of drone recovery systems, with strong versatility.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the technical effects described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front structural diagram of the parachute canopy release mechanism of a parachute recovery device provided in an embodiment of the present invention (mainly showing the connection between the front of the outer parachute pack and the front of the parachute canopy). Figure 2 This is a schematic diagram of the internal structure of the parachute canopy release mechanism of the parachute recovery device provided in an embodiment of the present invention (mainly showing the connection relationship between the sealing ring and the main parachute tether rope). Figure 3 This is a schematic diagram of the main umbrella structure inside the canopy of the canopy release mechanism of the parachute recovery device provided in an embodiment of the present invention (mainly showing the connection relationship between the main umbrella and the main umbrella tether rope). Figure 4This is a schematic diagram of the reverse structure of the parachute cover traction release mechanism of a parachute recovery device provided in an embodiment of the present invention (mainly showing the connection part between the back of the outer parachute pack and the back of the parachute cover). Figure 5 This is a schematic diagram of the reverse locking structure of the parachute canopy release mechanism of a parachute recovery device provided in an embodiment of the present invention (showing the ram's horn rope passing through each ring and the locking state of the fixing pin). Explanation of the labels in the diagram: 1-Outer umbrella pack; 2-Umbrella canopy cover; 3-Main umbrella top rope; 31-Main umbrella top rope loop; 4-Sealing ring; 5-First loop; 6-Second loop; 7-Third loop; 8-Pull cord; 9-Fixing pin; 10-Sheep horn rope; 11-Main umbrella. Detailed Implementation

[0021] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0024] This invention provides a parachute canopy tether release mechanism for a parachute recovery device. This mechanism is primarily used in parachute recovery systems to reliably separate the canopy from the outer parachute pack after the recovery device lands or under specific triggering conditions, while simultaneously releasing the main parachute tether rope in an orderly manner, thus allowing the main parachute to be smoothly pulled out and open. Through the ingenious connection and locking of multiple rings, ropes, and pins, this mechanism ensures a securely covered state when not triggered, and enables a rapid and sequential release process after triggering, improving the safety and reliability of the recovery.

[0025] The canopy release mechanism includes an outer canopy, a canopy cover, a main canopy release rope, a sealing ring, a first ring, a second ring, a third ring, a ram's horn rope, a pull rope, and a fixing pin. These components are interconnected through a specific looping and locking method to form a mechanical sequential release structure. The first ring is a large ring, the second ring is a medium ring, and the third ring is a small ring. The components of this invention are assembled according to the following steps: Step S1: A first ring is fixedly connected to both the front and back of the outer umbrella pack, a second ring is fixedly connected to the front of the umbrella cover, a second ring and a third ring are fixedly connected to the back of the umbrella cover, and the main umbrella top rope is disposed inside the umbrella cover and has a top rope loop.

[0026] Specifically, the outer parachute pack has a first loop fixedly connected to both its front and back sides. These first loops can be made of metal or high-strength nylon and are securely fixed to their respective positions on the outer parachute pack via stitching or riveting to ensure they do not detach under tension and impact during descent. The canopy cover is used to house and restrain the main parachute. A second loop is fixedly connected to its front side, and a second loop and a third loop are fixedly connected to its back side. The second and third loops are also made of high-strength materials and are fixed via stitching or heat pressing to ensure stability during repeated use. The main parachute's top rope is located inside the canopy cover, with one or both ends wrapped around and fixed to the top of the main parachute. A top rope loop is formed in the middle or at an appropriate position. This top rope loop is used for subsequent restraint by the packing ring, thus keeping the main parachute folded and stored when not released.

[0027] In one embodiment, the inner diameter of the first loop is larger than the outer diameter of the second loop to facilitate subsequent looping connections. The outer diameter of the third loop is smaller than the inner diameter of the second loop to form a finer locking structure on the reverse side. It should be noted that the fixing positions of these loops should be close to the edge areas of the canopy cover and outer parachute pack to facilitate rope threading and to avoid excessive stress concentration during parachute impact.

[0028] For example, during the preparation stage of the parachute recovery device, the main parachute is first folded neatly, and the main parachute top rope is tied to the top of the main parachute, leaving space for the top rope loop. Then, the main parachute is stored inside the canopy, and the outer parachute pack wraps around the top of the canopy. At this time, the positions of the first loop, the second loop, and the third loop on both sides should be aligned to facilitate the subsequent threading of the sealing ring and the taut rope.

[0029] In step S2, the sealing ring passes sequentially through the second loop on the front of the umbrella cover and the top rope loop and extends to the back of the umbrella cover. The first loop on the front of the outer umbrella pack is engaged with the second loop on the front of the umbrella cover, and the first loop on the back of the outer umbrella pack is engaged with the second loop on the back of the umbrella cover.

[0030] Specifically, the sealing ring is a flexible yet relatively rigid rope loop structure. First, both ends of the sealing ring are passed through the second loop from the front of the parachute canopy, then into the interior of the canopy. Both ends pass through a pre-formed top rope loop, and then extend from the interior of the canopy to the reverse side, forming two extended sections. At this point, the first loop on the front of the outer parachute pack interlocks with the second loop on the front of the canopy canopy, forming a frontal connection; the first loop on the reverse side of the outer parachute pack interlocks with the second loop on the reverse side of the canopy canopy, forming a reverse connection. This double interlocking method on both sides ensures a secure enclosure between the outer parachute pack and the canopy canopy, preventing accidental opening during parachute transport or deployment.

[0031] In one possible implementation, when the sealing ring passes through the top tether loop, it should be ensured that the top tether loop is fully constrained, i.e., the sealing ring forms a closed or semi-closed loop structure within the loop, thereby limiting the movement space of the top tether loop and preventing the main parachute top tether rope from being pulled out prematurely. The front and back loops should be joined after the sealing ring has been threaded to ensure a tight connection.

[0032] For example, in actual assembly, the outer parachute pack and canopy cover are first aligned, so that the second loop on the front is fitted with the first loop. Then, the sealing ring is inserted from the second loop on the front, passes through the inner top rope loop, and extends to the back. At this point, the operator can manually fit the first loop on the front into the second loop, and the first loop on the back into the second loop on the back. This sequence ensures smooth fitting, and the extended part of the sealing ring provides space for the subsequent threading of the ram's horn rope.

[0033] Step S21: The sealing ring passes through the second ring on the front of the umbrella cover and enters the interior of the umbrella cover.

[0034] Specifically, this process is the initial stage of threading the sealing ring. The two ends of the sealing ring first pass through the second loop on the front of the canopy cover, entering the interior space of the canopy cover. At this point, the interior of the canopy cover already accommodates the folded main umbrella and the main umbrella tow rope; care must be taken to avoid tangling with other ropes during operation. After passing through the second loop on the front, the sealing ring has sufficient length inside to reach the position of the tow rope loop.

[0035] In one embodiment, the sealing ring may be made of high-strength polyester or Kevlar rope with a smooth surface for easy threading and subsequent removal. When passing through the second loop on the front, an appropriate allowance is allowed to ensure that subsequent passing through the top loop inside does not cause jamming due to excessive tension.

[0036] For example, once the position of the second ring on the front of the umbrella cover is determined, the operator inserts both ends of the sealing ring into the second ring from the outside and pushes it inward until it enters the umbrella cover for about 5-10 centimeters. This length is sufficient to cover the preset position of the top rope ring.

[0037] Step S22, the sealing ring passes through the top rope loop inside the umbrella canopy.

[0038] Specifically, after the sealing ring enters the canopy, it continues to be pushed forward until it passes through a pre-formed top rope loop. The top rope loop is formed by folding or knotting the main umbrella's top rope at an appropriate position, usually near the top of the main umbrella. After the sealing ring passes through the top rope loop, it forms a constraint on the loop, preventing the main umbrella's top rope from pulling freely and thus maintaining the folded state of the main umbrella.

[0039] It should be noted that when passing through the traction loop, ensure that the sealing ring completely passes through the center of the loop, avoiding friction only at the edges, to guarantee the reliability of the restraint. Furthermore, this restraint is one of the core components of the entire release mechanism; the traction loop can only be freed after the sealing ring is removed.

[0040] For example, during assembly, the position of the top rope loop can be fixed first using auxiliary tools, then the sealing ring can be accurately passed through the center of the rope loop, and then the sealing ring can be pushed further towards the reverse side of the umbrella cover. This method avoids repeated adjustments and improves assembly efficiency.

[0041] Step S23, the two ends of the sealing ring extend from the inside of the umbrella cover to the reverse side of the umbrella cover to form two annular extensions through which the ram's horn rope passes.

[0042] Specifically, after the sealing ring passes through the top rope loop, it continues to move inside the canopy until its free end protrudes from a pre-reserved opening or gap on the reverse side of the canopy, forming an extension. This extension should be long enough to allow for multiple looping of the ram's horn rope, typically 3-5 centimeters. This extension acts as a bridge connecting the front constraint and the reverse locking, creating a closed-loop lock for the entire mechanism.

[0043] In one embodiment, a special loop hole or reinforced gap can be reserved on the reverse side of the umbrella cover to guide the free end of the sealing ring to extend smoothly and avoid friction damage in the fabric.

[0044] For example, after the sealing ring passes through the top rope loop, the operator manually pulls out the two free ends from the reverse side until the extension has sufficient length. At this point, the free ends can be temporarily fixed to prevent retraction.

[0045] In step S24, the two ends of the sheep horn rope pass through the two extensions of the sealing ring from the reverse side of the umbrella cover, are folded in half, and then pass through the second and third loops on the reverse side of the umbrella cover.

[0046] Specifically, although this step is reflected in the subsequent locking process, the looping sequence must be performed immediately after the extension of the sealing ring is formed. The two ends of the rope start from the reverse side of the umbrella canopy cover, first passing through the extension of the sealing ring to form a temporary constraint on the sealing ring, and then continuing to pass through the second and third loops on the reverse side to prepare for the subsequent formation of the end ring structure.

[0047] In one possible implementation, the ram's horn rope can be a looped rope to ensure consistent strength at both ends. When threading the loop, first pass through the extension, then through the second and third loops in sequence, which effectively prevents the rope from tangling.

[0048] For example, in actual operation, insert the two ends of the sheep horn rope into the two extensions of the sealing ring respectively, pull them out and continue to insert the second ring, then insert the third ring, and pull them out to form a ring for later use.

[0049] In step S3, the two ends of the ram's horn rope pass sequentially through the extension of the sealing ring, the second loop and the third loop on the reverse side of the umbrella cover, and the fixing pin is connected to one end of the hair tie and passes through the end of the ram's horn rope to lock the ram's horn rope.

[0050] Specifically, the ram's horn rope, as the core component of the reverse locking mechanism, forms an end loop structure after the aforementioned looping is completed. A fixing pin is connected to one end of the pull cord, passes through this end loop structure, and thus locks the ram's horn rope, preventing its ends from coming loose. At this point, the entire mechanism is in a fully locked state, the outer umbrella pack and the canopy cover are securely connected on both sides, the top rope loop is restrained by the sealing ring, and the main umbrella remains folded in.

[0051] In one embodiment, the two ends of the ram's horn rope are passed through the two extensions of the sealing ring first, then the second loop, and then the third loop. This sequence ensures that after locking, the ram's horn rope effectively restrains the extensions of the sealing ring, indirectly maintaining the stability of the front loop.

[0052] For example, after assembling and threading the sealing ring, take a rope and thread it through the extension of the sealing ring, then through the second ring once, and finally through the third ring once. Tighten it and fold it in half to form an end loop. Next, insert the locking pin from one end of the pull cord, through the end loop, and complete the locking.

[0053] Step S31, the ram's horn rope is a loop rope fixed to the reverse side of the umbrella canopy.

[0054] After the ram's horn rope passes through the second loop on the front and the top rope loop on the back of the sealing ring, the sealing ring forms two loops at the ends. The ram's horn rope is folded from the back of the umbrella cover and passed into the two ends of the sealing ring respectively.

[0055] In step S32, the two ends of the sheep horn rope pass through the extension of the sealing ring, the second loop and the third loop on the reverse side of the umbrella cover to form an end loop structure.

[0056] Specifically, after the two ends are looped, the loop is folded or knotted on the outside of the third loop to form a closed end loop structure. This loop structure is used to secure the pin through, which is key to locking the rope.

[0057] It should be noted that the size of the end ring structure should be moderate, so as to facilitate the insertion of the fixing pin, but not too large to prevent accidental detachment.

[0058] For example, after threading the loop, pull out about 3 centimeters from both ends to form a third loop, then fold it in half to form a ring structure with a diameter of about 2 centimeters, which facilitates subsequent operations.

[0059] Step S33, the fixing pin passes through the end ring structure to lock the ram's horn rope.

[0060] Specifically, the retaining pin is made of metal or high-strength plastic, with one end fixedly connected to the pull cord and the other end inserted into the end loop structure. After insertion, the two ends of the pull cord cannot come out of the loop path in the opposite direction, thus locking the entire reverse structure and indirectly maintaining the position of the sealing ring.

[0061] In one embodiment, the retaining pin is a straight pin to increase locking reliability.

[0062] For example, take the fixing pin, starting from the end of the pull cord connection, and pass the pin through the end ring structure until it is completely through. At this point, gently pull both ends of the ram's horn rope to confirm that there is no looseness, which means that the locking is complete.

[0063] In step S34, after the fixing pin is pulled out, both ends of the ram's horn rope are dislodged from the extension of the sealing ring under tension.

[0064] Specifically, this process is the initial stage of release. After the retaining pin is pulled out, the end ring structure is released, and the two ends of the ram's horn rope begin to disengage sequentially from the third ring, the second ring, and the extension of the sealing ring under the pre-stored tension or external force.

[0065] Step S4: After the pull cord is pulled out of the fixing pin, the ram's horn rope comes out and the sealing ring is pulled away, thereby releasing the constraint on the top rope loop and the connection between the outer umbrella bag and the front of the umbrella cover.

[0066] Specifically, when the pull cord is pulled by the umbrella opening trigger mechanism, it first pulls the fixing pin out of the loop structure at the end of the horn cord. At this point, the horn cord loses its lock, and both ends move rapidly in opposite directions under the pre-existing tension or the elastic force inside the main umbrella. It first comes out of the third loop, then from the second loop, and finally completely comes out of the extension of the sealing ring. After the horn cord comes out, the sealing ring loses its reverse constraint, and its free end begins to pull away under the friction and internal tension of the top pull cord loop or the second loop on the front. This pulling process proceeds sequentially, first withdrawing from the top pull cord loop, releasing the direct constraint on the main umbrella's top pull cord, and then continuing to pull out from the second loop on the front of the canopy, ultimately causing the connection between the first and second loops on the front to be released. The reverse connection is unaffected because the horn cord has come out, but the overall coverage is disrupted.

[0067] In one implementation, the sequential nature of the extraction process is achieved through the friction between components and the design of the insertion path, ensuring that the tether rope loop is released first, so that the main parachute top is pulled out in time after the recovery device lands or at a designated height, avoiding the main parachute opening too early or too late.

[0068] For example, when the parachute recovery device approaches the ground or trigger altitude, the parachute deployment trigger mechanism pulls the launch cord. The fixing pin quickly disengages from the end loop structure, and both ends of the ram's horn rope immediately retract, first disengaging from the third loop, then from the second loop, and finally quickly sliding out from the extension of the packing ring. At this point, the packing ring, loosened due to the loss of restraint, is pulled away from the inside towards the front second loop under the push of the traction rope ring. The traction rope ring is released first, and then the front second loop is completely disengaged, thus separating the front connection.

[0069] Step S41: The main umbrella top rope is wrapped around and fixed to the top of the main umbrella.

[0070] Specifically, one or both ends of the main umbrella's top rope are securely wrapped around and fixed to the center area of ​​the main umbrella's top, usually by wrapping multiple times and then knotting or sewing. This fixation ensures that after the top rope loop is released, the tension can be directly transmitted to the top of the umbrella, allowing the main umbrella to quickly open and form the canopy.

[0071] It should be noted that the securing point should be located in the reinforced area at the top of the main umbrella to withstand the instantaneous impact when it opens. The top rope can be made of high-strength nylon or polyester rope to balance flexibility and tensile strength.

[0072] For example, before folding the main umbrella, first pass one end of the top rope through the center hole of the umbrella top, wrap it around the reinforcing fabric of the umbrella top multiple times, and then tie a knot to secure it. Leave a portion at the other end or in the middle to form a loop for the top rope, ensuring that the overall length is appropriate.

[0073] Step S42, the main umbrella tether rope forms the tether rope loop at both ends or at appropriate positions.

[0074] Specifically, the top rope loop can be formed by folding, knotting, or sewing the top rope at an appropriate position, usually near the center of the inside of the umbrella canopy, to facilitate the passage of the sealing ring. The size of the loop should be moderate, allowing for easy restraint by the sealing ring while also enabling rapid transmission of tension after release.

[0075] In one embodiment, a single loop is preferably formed in the middle of the traction rope to simplify assembly and ensure even force distribution. Third loops can also be formed at both ends, but the single loop in the middle is more common.

[0076] For example, take the top rope and fold it in half about 40-60 cm from the end where the umbrella top is fixed to form a rope loop with a diameter of about 5-8 cm. Tie the loop with a thin rope to ensure that the loop is flat and not twisted.

[0077] Step S43, the sealing ring passes through the top rope loop to restrain the main umbrella top rope.

[0078] Specifically, the sealing ring passes through the tether rope loop inside the canopy, forming a closed constraint on the loop and preventing the tether rope from shifting if not triggered. This constraint is crucial to preventing the main parachute from opening prematurely, directly affecting the stable transport and deployment of the recovery device.

[0079] In one possible implementation, the sealing ring can form a single or double loop constraint when passing through the rope loop. The double loop method can increase friction and further improve the reliability of the constraint.

[0080] For example, during assembly, the free end of the sealing ring is accurately passed through the center of the traction rope loop, and after tightening, it continues to extend in the opposite direction to ensure that the rope loop is completely surrounded without any room for movement.

[0081] Step S44: After the sealing ring is removed, the tether loop is released to pull out the main umbrella.

[0082] Specifically, after the sealing ring is completely removed from the top tether loop, the loop loses its restraint, and the internal folding elasticity of the main umbrella or the action of external airflow causes the top tether rope to quickly pull the top of the umbrella, and the main umbrella opens in sequence to form a complete canopy, achieving deceleration and stable recovery.

[0083] It should be noted that this release timing is controlled by the release of the preceding ram's horn rope, ensuring that the main parachute opens after the main body of the recovery device is stable, thus avoiding interference with the main body's posture.

[0084] For example, the moment the sealing ring exits the cord loop, the top cord loop immediately expands, and the top cord is pulled out of the top of the umbrella under the elastic drive of the spring or the umbrella fabric. The main umbrella cords extend in sequence and finally open completely.

[0085] Step S51: The first ring on the front of the outer umbrella pack and the second ring on the front of the umbrella canopy are interlocked to form a front connection.

[0086] Specifically, the frontal connection is achieved by the first ring completely fitting into the second ring, forming a movable but not easily detachable chain structure. This connection primarily withstands the frontal impact and tension during the parachute descent.

[0087] In one embodiment, the inner diameter of the first ring is slightly larger than the outer diameter of the second ring to ensure smooth connection while maintaining tightness under the constraint of the sealing ring.

[0088] For example, during assembly, first align the second ring and the first ring on the front, manually slip the first ring onto the second ring from the side, and after confirming that they are fully engaged, proceed with the subsequent threading.

[0089] In step S52, the first ring on the reverse side of the outer umbrella bag and the second ring on the reverse side of the umbrella cover are interlocked to form a reverse connection.

[0090] Specifically, the reverse connection is similar to the front, but because the reverse side also involves taut ropes and a third locking loop, its connection strength is indirectly enhanced through the taut ropes. This double-sided connection allows the outer parachute pack to completely cover the canopy cover.

[0091] For example, the reverse looping is performed after the front is completed. The first loop on the reverse side is looped into the second loop on the reverse side, and at this time the path for the sheep horn rope to pass through is already prepared.

[0092] Step S53: The front connection is released after the sealing ring is removed.

[0093] Specifically, after the sealing ring is completely pulled out from the second loop on the front, the second loop on the front loses the support and restraint of the sealing ring, and the first loop moves freely within the second loop. Under the action of external force or gravity, it quickly separates, thus realizing the opening of the front of the outer parachute pack.

[0094] In one embodiment, this release is a direct result of the entire separation process, ensuring that the outer parachute pack detaches quickly from the canopy cover.

[0095] For example, when the last segment of the sealing ring leaves the second loop on the front, the first loop on the front slides out of the second loop due to the lack of restraint, and the front of the outer parachute immediately opens.

[0096] Step S54, the reverse connection is maintained by locking the ram's horn rope.

[0097] Specifically, the reverse connection is maintained by the ram's horn binding the extended portion of the sealing ring. Even after the front is released, the first and second loops on the reverse side remain engaged until the ram's horn completely disengages, at which point the overall structure loosens. However, in the sequential release design, the reverse connection naturally separates as the outer parachute unfolds after the main parachute is pulled out.

[0098] It should be noted that this design uses the reverse connection as a backup lock, enhancing overall reliability.

[0099] For example, after the front is released, the back remains for a moment because the rope still briefly binds the remaining part of the sealing ring, after which the rope comes off completely and the connection on the back is released.

[0100] Step S61: After the ram's horn rope comes off, the sealing ring loses its restraint.

[0101] Specifically, after the two ends of the ram's horn rope come off the extension, the free end of the suffix is ​​not restrained by any reverse rope, loses its ability to fix its position, and begins to move under the drive of internal tension.

[0102] In one implementation, this loss of constraint is a necessary prerequisite for extraction, ensuring that the envelope does not get stuck in the extension.

[0103] For example, the moment the rope finally detaches from the extended section, the sealing loop immediately loosens, and the free end begins to retract.

[0104] Step S62, the sealing ring is pulled out from the top rope loop to release the main umbrella top rope.

[0105] Specifically, once the sealing ring is unrestrained, it first moves in the opposite direction along a path closer to the reverse side, gradually withdrawing from the top rope loop. This withdrawal allows the top rope loop to gain freedom, which is a prerequisite for the main parachute to open.

[0106] For example, the sealing ring completes its disengagement from the top rope loop within approximately 0.1-0.3 seconds after the ram's horn rope comes off, and the main parachute top rope is then pulled.

[0107] In step S63, the sealing ring continues to be pulled out from the second ring on the front of the umbrella cover.

[0108] Specifically, after exiting the top rope loop, the sealing ring continues to move along the original path towards the second loop in front, and is eventually completely pulled out from the second loop in front. This continuous extraction ensures the smoothness and sequence of the movement.

[0109] In one possible implementation, the surface of the sealing ring can be coated with a low-friction material to accelerate the extraction process.

[0110] For example, as the main body of the sealing ring slides inside, it sequentially detaches from each of the internal components, finally reaching the second ring on the front and exiting.

[0111] Step S64: After the sealing ring is completely removed, the connection between the outer umbrella pack and the front of the umbrella canopy is released.

[0112] Specifically, after the sealing ring completely separates from the second loop on the front, the front connection loses its last support, the first loop separates from the second loop, the front of the outer parachute pack is completely opened, the canopy is exposed, and the main parachute has begun to open.

[0113] For example, the entire detachment process is completed within 1 second after triggering, and the main umbrella has already partially opened at the same time the front connection is released.

[0114] Step S71, one end of the hair-pulling rope is fixedly connected to the fixing pin.

[0115] Specifically, one end of the pull cord is securely connected to the fixing pin by knotting, crimping, or heat fusion to ensure that the pulling force is directly transmitted to the fixing pin.

[0116] In one embodiment, a protective sleeve may be added to the connection to prevent wear.

[0117] For example, take one end of the hair tie, pass it through the eye of the fixing pin, tie a knot to secure it, and apply glue to reinforce it.

[0118] Step S72: After the fixing pin is pulled out, the ram's horn rope is released.

[0119] Specifically, once the fixing pin disengages from the end ring structure, the two ends of the ram's horn rope immediately lose their obstruction and begin to disengage under tension, initiating all subsequent release actions.

[0120] For example, the moment the fixing pin completely disengages, both ends of the ram's horn rope retract synchronously, initiating the release.

[0121] Step S81: After the two ends of the ram's horn rope pass through the third loop, they are folded in half or knotted to form the end loop structure.

[0122] Specifically, after the two ends of the ram's horn rope are pulled out from the third loop, they are folded in half on the outside to form a closed end loop structure, which is used to fix the pin insertion.

[0123] Step S82, the fixing pin passes through the end ring structure to prevent the ram's horn rope from coming loose.

[0124] Specifically, after the fixing pin passes through the end ring structure, the two ends of the ram's horn rope cannot pass through the third and second rings in the opposite direction, thus preventing loosening in any direction.

[0125] For example, after inserting the fixing pin, gently pull the rope; if there is no displacement, the lock is successfully engaged.

[0126] Step S83: After the fixing pin is pulled out, the end ring structure releases both ends of the ram's horn rope.

[0127] Specifically, after the fixing pin is pulled out, although the end ring structure still exists, it loses the obstruction of the pin and the two ends can retract freely under tension, and then disengage sequentially through the third ring, the second ring and the extension.

[0128] For example, at the moment of pull-out, the end ring structure loosens, and both ends quickly disengage from all constraint paths.

[0129] In one embodiment, when the entire mechanism is used in a parachute recovery system, all components are first secured and fitted, followed by a functional check. The check includes manually simulating the pulling of the launch line to confirm that the retaining pin can be smoothly pulled out, the taut rope can be quickly released, the sealing ring can be sequentially withdrawn, the tether loop can be released, and the main parachute can be pulled out. The front and back fittings are secure when not triggered; upon triggering, the front separates first, followed by the back opening naturally. This sequential release design ensures the main parachute opens at the appropriate time, preventing the outer parachute pack from interfering with canopy formation.

[0130] It should be noted that all ropes are made of high-strength, low-elongation fibers to minimize the impact of elastic deformation on the release timing. The surfaces of loop components can be rounded to reduce frictional resistance during insertion and withdrawal.

[0131] For example, in the preparation for an actual recovery mission, the main parachute is first folded and placed into the canopy cover, the top rope is laid and formed into a loop, and then the outer parachute pack is wrapped, aligning the front and back loops. Next, the sealing ring is threaded through the canopy, entering from the second loop on the front, passing through the rope loop, and extending to the back. A rope is taken, folded in half, and both ends are passed through the extension section multiple times from the back, then through the second and third loops in a single pass, tightened to form an end loop. Finally, a fixing pin is inserted, connecting the pull cord to the trigger mechanism. The entire assembly can be completed on the ground, and after verification, it is loaded onto the recovery device.

[0132] Furthermore, to adapt to parachute recovery devices with different loads, the size of the loops and the strength of the rope can be adjusted. For example, for heavier loads, the diameter of the first loop and the rope can be increased to withstand greater impact; for lighter devices, a smaller third loop and thinner rope can be used to reduce weight. This adjustment does not change the basic connection and release principle, but only optimizes specific parameters.

[0133] In one possible implementation, a pull ring can be added to the free end of the sealing ring to facilitate manual testing of the release action. During testing, the sealing ring is manually pulled to observe whether the top pull rope ring releases first, and whether the front loop is subsequently released. After confirming that the sequence is correct, the ring is reassembled.

[0134] For example, during maintenance and inspection, pull out the retaining pin and observe the speed at which the rope comes off and the path of the sealing ring as it is pulled out, ensuring there is no jamming or tangling. Then re-lock and re-sleeve to verify reusability.

[0135] This invention achieves reliable canopy top control through a combination of front and back double-ring interlocking, and the sequential locking and releasing of the sealing ring and the taut rope. When not triggered, the components mutually constrain each other to form a secure enclosure, preventing accidental opening. Upon triggering, pulling the lead rope pin activates the taut rope, causing the sealing ring to sequentially detach, first releasing the main canopy top rope, then releasing the front interlocking, allowing the outer canopy to open in an orderly manner and the main canopy to deploy promptly. This mechanical, pure rope ring-pin structure requires no electronic components, is adaptable to harsh environments, and improves the stability and safety of the recovery device.

[0136] Furthermore, the design of the third loop on the reverse side and the loop structure at the end of the ram's horn rope concentrates the locking points, facilitating quick assembly and inspection. The direct connection between the fixing pin and the pull cord ensures efficient transmission of the trigger signal to the release point.

[0137] For example, in multiple parachute drop tests, the mechanism achieved stable release under different wind speeds and altitudes, with consistent main parachute opening times and clean separation of the outer parachute pack without any residual entanglement.

[0138] In another implementation, a limiting knot can be added to the middle of the rope to prevent excessive retraction from affecting subsequent reassembly. Simultaneously, a guide strip is added to the inside of the outer parachute pack to guide the sealing ring away from its path and prevent deviation.

[0139] For example, guide strips are sewn inside the umbrella canopy along the sealing ring path to reduce extraction resistance and further shorten release time.

[0140] Example 1: like Figures 1-5 As shown, the parachute recovery device of the present invention provides a parachute canopy release mechanism, which mainly consists of an outer parachute pack 1, a parachute canopy 2, a main parachute tether rope 3, a main parachute tether rope ring 31, a sealing ring 4, a first ring 5, a second ring 6, a third ring 7, a pull rope 8, a fixing pin 9, a ram's horn rope 10, and a main parachute 11. The outer parachute pack 1 is usually made of flexible fabric such as high-strength nylon cloth, and a first ring 5 is sewn or fixed on both sides. The parachute canopy 2 is also made of flexible fabric, with a second ring 6 sewn on the front and a second ring 6, a third ring 7, and a ram's horn rope 10 sewn on the back. The main parachute tether rope 3 binds the main parachute 11 and stores it inside the parachute canopy 2, and tether rope rings 31 are formed at both ends or appropriate positions of the main parachute tether rope 3. The outer umbrella pack and umbrella cover of the present invention are made of flexible fabric material, the sealing ring 4 is a high-strength rope loop or belt loop, and the first ring, the second ring, and the third ring are metal rings or high-strength polymer rings.

[0141] like Figure 1 As shown, during assembly, first connect the front of the umbrella cover 2: Insert the second ring 6 on the front of the umbrella cover 2 into the first ring 5 on the front of the outer umbrella bag 1; Insert the sealing ring 4 (such as a high-strength nylon rope ring) into the second loop 6 on the front of the umbrella cover 2, and then thread it into the inside of the umbrella cover 2.

[0142] like Figure 2 and Figure 3 As shown, the connection inside the umbrella cover 2 is carried out: the main umbrella 11 is installed inside the umbrella cover 2, and the top of the main umbrella 11 is tied with the main umbrella top rope 3. The sealing ring 4 needs to pass through the two main umbrella top rope loops 31 inside the umbrella canopy 2, and the free end of the sealing ring 4 needs to pass through the umbrella canopy 2 itself to reach its reverse side.

[0143] like Figure 4 As shown, connect and lock the umbrella canopy cover 2 on the reverse side: Connect the first ring 5 on the back of the outer parachute pack 1 to the second ring 6 on the back of the parachute cover 2; Take the two ends of the sheep horn rope 10 (usually a rope folded in half or two separate ropes), pass them sequentially from the back of the umbrella cover 2 through the free end of the aforementioned extended sealing ring 4, then through the second loop 6 on the back of the umbrella cover 2, and finally through the third loop 7.

[0144] The end of the ram's horn rope 10 forms a loop. A fixing pin 9 at one end of the pull cord 8 passes through this loop or through a hole to lock the end of the ram's horn rope 10 into the third loop 7, preventing it from loosening (e.g., Figure 5 (As shown).

[0145] The other end of the pull cord 8 is connected to the main umbrella handle via a break cord.

[0146] The working process of this invention is as follows: When the drone needs to be deployed and recovered, the canopy cover 2 must first be straightened before the deployment procedure can begin.

[0147] After the canopy cover 2 is straightened, the pull cord 8 pulls the fixing pin 9 out of the end of the ram's horn cord 10 due to the speed difference. The ram's horn cord 10 loses its fixation, and under the force of opening the umbrella, both ends quickly detach from the sealing ring 4. The sealing ring 4 is thus released and quickly withdraws from the second loop 6 on the front of the canopy cover 2, the top rope loop 31, and the first loop 5 on the front of the outer umbrella pack 1.

[0148] The removal of the sealing ring 4 first releases the main parachute top rope 3. Immediately afterwards, the connection between the outer parachute pack 1 and the front of the canopy cover 2 is completely released, and the main parachute inside the canopy cover 2 is smoothly pulled out and begins to inflate. The entire parachute opening process is orderly and reliable.

[0149] The foregoing has provided a detailed description of the parachute recovery device's canopy release mechanism and the drone provided in the embodiments of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application; furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

[0150] Certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The terms "comprising" and "including" used throughout the specification and claims are open-ended and should be interpreted as "comprising / including but not limited to". "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error. The following descriptions in the specification are preferred embodiments for carrying out this application; however, these descriptions are for the purpose of illustrating the general principles of this application and are not intended to limit the scope of this application. The scope of protection of this application shall be determined by the appended claims.

[0151] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0152] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0153] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A parachute canopy release mechanism for a parachute recovery device, characterized in that, The parachute recovery device's canopy release mechanism includes an outer parachute pack, a canopy cover, a main parachute tether rope, a sealing ring, a first ring, a second ring, a third ring, a ram's horn rope, a pull rope, and a fixing pin. The outer umbrella pack has a first ring fixedly connected to both the front and back sides, the umbrella canopy has a second ring fixedly connected to the front side, and the umbrella canopy has a second ring fixedly connected to the back side and a third ring fixedly connected to the back side. The main umbrella top rope is located inside the umbrella canopy and has a top rope loop. The sealing ring passes sequentially through the second loop on the front of the umbrella cover and the top rope loop and extends to the back of the umbrella cover. The first loop on the front of the outer umbrella pack is engaged with the second loop on the front of the umbrella cover, and the first loop on the back of the outer umbrella pack is engaged with the second loop on the back of the umbrella cover. The two ends of the ram's horn rope pass sequentially through the extension of the sealing ring, the second loop and the third loop on the reverse side of the umbrella cover, and the fixing pin is connected to one end of the hair pull cord and passes through the end of the ram's horn rope to lock the ram's horn rope. After the pull cord is pulled out of the fixing pin, the ram's horn rope comes off, causing the sealing ring to be pulled away, thereby sequentially releasing the constraint on the top rope loop and the connection between the outer umbrella bag and the front of the umbrella cover.

2. The parachute canopy release mechanism of the parachute recovery device according to claim 1, characterized in that, The extended portion of the envelope specifically includes: The sealing ring passes through the second loop on the front of the umbrella cover and then enters the interior of the umbrella cover; the sealing ring passes through the top rope loop inside the umbrella cover; The free end of the sealing ring extends from the inside of the umbrella cover to the reverse side of the umbrella cover to form an extension through which the ram's horn rope passes. The two ends of the sheep horn rope pass sequentially through the extension of the sealing ring from the reverse side of the umbrella cover, and then through the second and third loops on the reverse side of the umbrella cover.

3. The parachute canopy release mechanism of the parachute recovery device according to claim 1, characterized in that, The ram's horn rope is a folded rope with two ends or two independent ropes; the two ends of the ram's horn rope pass through the extension of the sealing ring, the second loop and the third loop on the reverse side of the umbrella cover to form an end loop structure; the fixing pin passes through the end loop structure to lock the ram's horn rope; after the fixing pin is pulled out, the two ends of the ram's horn rope are pulled out from the extension of the sealing ring under the action of tension.

4. The parachute canopy release mechanism of the parachute recovery device according to claim 1, characterized in that, The main umbrella top rope is wrapped around and fixed to the top of the main umbrella; the main umbrella top rope forms a top rope loop at both ends or at appropriate positions; the sealing ring passes through the top rope loop to restrain the main umbrella top rope; after the sealing ring is removed, the top rope loop is released to pull out the main umbrella.

5. The parachute canopy release mechanism of the parachute recovery device according to claim 1, characterized in that, The first loop on the front of the outer parachute pack and the second loop on the front of the parachute canopy are interlocked to form a front connection; the first loop on the back of the outer parachute pack and the second loop on the back of the parachute canopy are interlocked to form a back connection; the front connection is released after the sealing ring is removed; the back connection is maintained by the ram's horn rope.

6. The parachute canopy release mechanism of the parachute recovery device according to claim 2, characterized in that, The extraction of the envelope ring specifically involves: The sealing ring loses its restraint after the ram's horn rope comes off; The sealing ring is pulled out of the top rope loop to release the main umbrella top rope; The sealing ring continues to be pulled away from the second loop on the front of the umbrella cover; after the sealing ring is completely pulled away, the connection between the outer umbrella bag and the front of the umbrella cover is released.

7. The parachute canopy release mechanism of the parachute recovery device according to claim 1, characterized in that, One end of the hair-pulling cord is fixedly connected to the fixing pin; the other end of the hair-pulling cord is connected to the umbrella opening trigger mechanism; when the umbrella is opened, the hair-pulling cord is pulled and the fixing pin is pulled out; after the fixing pin is pulled out, the ram's horn rope is released.

8. The parachute canopy release mechanism of the parachute recovery device according to claim 3, characterized in that, The two ends of the ram's horn rope pass through the third loop and are then folded in half to form the end loop structure; the fixing pin passes through the end loop structure to prevent the ram's horn rope from loosening; after the fixing pin is pulled out, the end loop structure releases the two ends of the ram's horn rope.

9. The parachute canopy release mechanism of the parachute recovery device according to claim 1, characterized in that, The first ring, the second ring, and the third ring are metal rings or high-strength polymer rings, the sealing ring is a high-strength rope loop or belt loop, and the outer umbrella bag and umbrella canopy are made of flexible fabric material.

10. A drone, characterized in that, The drone is equipped with a parachute canopy release mechanism as described in any one of claims 1-9.

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