A catapult-type parachute opening device and a cargo delivery system incorporating the same

Abstract

The utility model discloses a kind of ejection type parachute opening device and the material air-drop system comprising it, the ejection type parachute opening device includes chassis (1), ejector plate (2), elastic member (3), clamping plate (4), pull rope (5), the device simple structure, ejection is stable, easy operation, both can be applicable to large air-drop piece, can also be used for small air-drop piece, especially applicable to the fast, accurate delivery of low-altitude emergency rescue material.In addition, the material air-drop system containing the ejection type parachute opening device, using the ejection type parachute opening device provided by the utility model, by the pulling effect of mechanism, the quick ejection of stable umbrella can be realized, can rapidly unfold stable umbrella in air-drop process, effectively improve the accuracy and safety of material delivery.The device and system provided by the utility model improve the actual delivery efficiency of material, wide application range, high stability, strong anti-interference ability, low production cost, facilitate large-scale popularization and application.

Description

Technical Field

[0001] This utility model relates to material airdrop equipment, specifically to a catapult-type parachute opening device and a material airdrop system including the same, belonging to the technical field of material airdrop equipment. Background Technology

[0002] Airdrop refers to the process of delivering supplies or personnel from an aircraft to a designated location using parachutes or other effective deceleration devices. Early airdrops were primarily used in military operations, transporting supplies, equipment, and soldiers from the air to designated combat sites. It was the main means of delivering equipment and supplies to paratroopers and other units operating behind enemy lines. Traditional airdrops are divided into parachute-assisted airdrops and parachute-less airdrops. Parachute-assisted airdrops involve using a parachute to pull supplies from the aircraft and using the parachute's cushioning effect to deliver them to the ground; this is generally used for delivering heavy items. Parachute-less airdrops involve directly dropping supplies from the aircraft; this is generally used for delivering lightweight and durable items (such as leaflets, clothing, and bedding). With the continuous development of airdrop technology, higher demands have been placed on the safety, accuracy, and applicability of airdropped supplies. Especially in complex terrain or high-altitude areas, traditional airdrop methods are difficult to achieve accurate delivery due to factors such as airflow and wind speed, and may even lead to damage to supplies or deviation from the target area.

[0003] With social development and technological advancements, airdrops are no longer limited to military operations and are increasingly being used in emergency relief efforts such as flood control and earthquake relief. After earthquakes, floods, or landslides, road closures often prevent relief supplies from being transported directly to disaster areas by ground vehicles, especially essential supplies for the basic survival of affected populations (such as water, food, cold-weather gear, and medicine). The inability to deliver these supplies in a timely manner can cause significant losses. Therefore, airdropping emergency relief supplies has become almost the only effective means of resolving this predicament. In this context, the accuracy and safety of airdrop technology are paramount.

[0004] While traditional parachute-assisted airdrops offer the advantage of large delivery volumes, they require specialized systems and a certain amount of internal space in the aircraft, typically employing large aircraft. To ensure the safety of these large aircraft, the drop altitude is generally high. While supplies land safely with the help of parachutes, the accuracy of the landing point is uncertain. Furthermore, relief supplies are generally delivered in a one-time event, and large parachutes are difficult to recover, significantly increasing delivery costs. Parachuteless airdrops, compared to parachute-assisted airdrops, reduce costs and achieve precise delivery. However, limitations in equipment size and space mean that even low-altitude drops cannot guarantee the integrity of relief supplies, and the effectiveness of delivery may not meet rescue needs. Existing technologies have proposed a novel method for airdropping relief supplies: pre-concealing a stabilizing parachute within an airdrop container. Once the container descends to a certain height above the ground, an altitude sensor controls an automatic deployment device to release the parachute. While this method eliminates the need for large aircraft for high-altitude delivery, it doesn't solve the problem of parachute recovery. Furthermore, the sensors are susceptible to environmental influences, leading to reduced accuracy or even malfunction, thus failing to guarantee timely deployment. Meanwhile, researchers are exploring a reusable intelligent stabilizing parachute system. This system integrates high-precision sensors and a microprocessor chip to monitor the descent trajectory of airdropped supplies in real time and automatically adjust the parachute's deployment timing and attitude based on environmental changes, significantly improving the accuracy and safety of airdrops. However, since airdrops are typically conducted in harsh environments, control devices using electrical sensors are easily interfered with or malfunction in complex and changing natural environments, thus posing significant challenges to their stability. Additionally, the intelligent stabilizing parachute system's responsiveness and reliability are also affected by sudden severe weather or strong electromagnetic interference. Chinese patent document CN117246517A discloses a drone-mounted remote delivery device. This device includes a fixed base, legs, a supply box, and a parachute, as well as a drop box, a fixed plate, a movable plate, a positioning block, elastic elements, a rotating shaft, and an opening / closing door. Automatic delivery of the supply box is achieved through a trigger-type fixing mechanism and a flipping mechanism. However, this device has a complex structure, high manufacturing cost, and is prone to mechanical component failures affecting delivery performance in practical applications. Regarding improving landing accuracy, Chinese patent document CN107963219A describes a precision-landing supply drop box device, including a drop box, a launch device, a parachute, and a retraction device. Precise landing of supplies is achieved through the cooperation of a positioning module, a control module, a wireless receiving module, and a drive device. However, this device relies on an electronic control system, which may face the risk of insufficient power supply or electronic component failure in harsh environments, affecting system reliability.Chinese patent document CN204871613U discloses a parachute deployment device for unmanned aerial vehicles (UAVs), comprising a parachute compartment, a parachute, a compartment cover, a launch plate, and a launch spring. The parachute is ejected from the compartment by the spring force. While this device has advantages such as strong ejection force and long service life, its structure is relatively simple and lacks a reliable locking mechanism and release mechanism. In practical applications, there may be risks of delayed or failed parachute deployment.

[0005] In summary, existing relief supplies suffer from problems such as low parachute deployment efficiency, low delivery accuracy, low delivery cost, and weak anti-interference performance, making it difficult to meet the actual needs of emergency rescue in a timely and efficient manner. Therefore, there is an urgent need for a new type of relief supplies airdrop solution to overcome the many shortcomings of traditional stabilized parachute airdrop methods. Utility Model Content

[0006] This invention addresses the problems of low parachute deployment efficiency, low delivery efficiency, high delivery cost, and weak anti-interference performance in existing material delivery equipment, making it difficult to meet the actual needs of emergency rescue in a timely and efficient manner. It achieves the technical effect of rapidly deploying a stabilizing parachute through a purely mechanical pulling action, applicable to various sizes of airdropped items, improving the accuracy and safety of material delivery, and increasing delivery efficiency. This invention provides a catapult-type parachute deployment device. Through the ingenious connection of a chassis, catapult plate, elastic element, locking plate, and pull rope, simply pulling the locking plate with the pull rope releases the lock on the catapult plate, allowing the compressed elastic element to launch the catapult plate upwards, thereby causing the stabilizing parachute placed on the surface of the catapult plate to fly out and open. The parachute deployment device of this invention is a purely mechanical connection.

[0007] In addition, in view of the problems of low delivery accuracy, low delivery efficiency, high delivery cost and weak anti-interference ability of existing material delivery equipment, this utility model also provides a material airdrop system containing the above-mentioned ejection-type parachute opening device, which enables the material airdrop system to achieve low-altitude material delivery, greatly improves delivery accuracy and material integrity, significantly improves delivery efficiency and effectively reduces delivery cost.

[0008] According to a first embodiment of the present invention, a catapult-type parachute opening device is provided:

[0009] A catapult-type parachute deployment device includes a chassis, a catapult plate, an elastic element, a locking plate, and a pull cord. The catapult plate is positioned above the chassis. The locking plate is positioned below the chassis. The elastic element is positioned between the chassis and the catapult plate. A locking mechanism is provided on the bottom surface of the catapult plate. The chassis has a through hole through which the locking mechanism passes. The locking plate has a locking hole for connecting to the locking mechanism. The locking mechanism passes through the through hole on the chassis and connects to the locking hole. The pull cord is connected to the locking plate.

[0010] Preferably, the pallet has a plate-like structure with snap-fit ​​holes. A pull rope connecting arm is provided on one side of the pallet.

[0011] Preferably, the center of the card plate is connected to the chassis via a pivot (preferably a bolt or screw).

[0012] Preferably, the card plate has a ring-shaped structure and is provided with snap-fit ​​holes. A pull rope connecting arm is provided on one side of the card plate.

[0013] Preferably, the card plate has connection holes, and a connecting shaft is fixedly installed on the bottom of the chassis. The card plate is connected to the chassis via the connecting shaft and the connection holes.

[0014] Preferably, a washer is provided between the connecting shaft and the connecting hole.

[0015] Preferably, the connecting shaft is a bolt.

[0016] Preferably, the pull rope connecting arm is provided with a pull rope fixing hole.

[0017] Preferably, the locking mechanism is a locking post, one end of which is fixedly connected to the bottom surface of the ejection plate, and the other end of which has a groove. The locking hole consists of two hollow holes with different inner diameters connected together. The inner diameter of the larger hollow hole is larger than the outer diameter of the locking post, and the inner diameter of the smaller hollow hole is smaller than the outer diameter of the locking post but larger than the diameter of the groove on the locking post. The groove of the locking post engages with the hollow hole of the locking hole.

[0018] Preferably, the locking mechanism is a curved structure, including a vertical rod and a horizontal rod. One end of the vertical rod is fixedly connected to the bottom surface of the ejection plate, and the other end is connected to the horizontal rod. The locking hole is a perforated structure. The inner diameter of the perforated hole is larger than the width of the locking mechanism. The locking mechanism passes through the locking hole, and the horizontal rod of the locking mechanism acts on the locking plate.

[0019] Preferably, the perforated hole is semi-circular, circular, arc-shaped, or square.

[0020] Preferably, one end of the elastic element is connected to the upper surface of the chassis. The other end of the elastic element is connected to or acts on the lower surface of the launch plate (for example, when the elastic element is compressed, the elastic element presses against the lower surface of the launch plate; when the elastic element is straightened, the elastic element separates from the launch plate).

[0021] Preferably, the elastic element is a sheet or a spring.

[0022] Preferably, the elastic element is disposed above the through hole.

[0023] Preferably, n elastic elements are provided between the chassis and the launch plate. n is 1-500, preferably 2-300, and more preferably 3-100.

[0024] Preferably, the device also includes a tray. The tray is located between the chassis and the launch plate, and is connected to the upper surface of the chassis. The tray has a first through hole for the elastic element to pass through and a second through hole for the locking mechanism to pass through.

[0025] Preferably, the second through hole and the through hole are connected by a hollow tube.

[0026] Preferably, a recessed groove is provided in the middle of the tray, the bottom end of which is connected to the middle surface of the chassis, and an opening or groove corresponding to the groove is provided in the middle of the ejection plate.

[0027] Preferably, a guide wheel is provided on one side of the chassis. The pull rope passes through the guide wheel and connects to the clamping plate.

[0028] Preferably, the chassis, catapult plate, or tray is equipped with a parachute fixing device.

[0029] Preferably, the end of the pull rope is provided with a pull ring or hook.

[0030] Preferably, the catapult plate is equipped with a signal generating device.

[0031] Preferably, the signal generating device is one or more of an electrical signal generating device, an optical information generating device, an audio signal generating device, and a vibration signal generating device.

[0032] According to a second embodiment of the present invention, a material airdrop system is provided:

[0033] A material airdrop system includes a cargo-carrying device, a stabilizing parachute, and a catapult-type parachute deployment device as described in a first embodiment. The stabilizing parachute and the catapult-type parachute deployment device are mounted on the cargo-carrying device, and the stabilizing parachute is connected to the catapult-type parachute deployment device or the cargo-carrying device.

[0034] In this invention, the carrying device can be a box, bag, net, pouch, or basket, etc. Any device capable of carrying goods can be used as a carrying device. Preferably, the carrying device is a box structure with a certain buffering function. The top or interior of the carrying device has a mounting position for fixing the ejector-type umbrella device, and its top, bottom, or sides have opening and closing mechanisms (e.g., buckles) for convenient loading and unloading of goods.

[0035] Preferably, the cargo-carrying device is an airdrop container; the airdrop container includes a container body and a lid. The container body has an open-top structure, and the lid closes onto the open top of the container body. The lid has a cavity structure with an inner cavity, in which an ejector-type parachute deployment device and a stabilizing parachute are located.

[0036] Preferably, the upper surface of the lid has an opening for the ejection plate to pass through. The outer surface of the lid has a hole for the pull rope to pass through.

[0037] Preferably, the opening through which the catapult plate passes is provided with a cover plate.

[0038] Preferably, the cover plate is glued to the box lid or connected by an easy-tear line.

[0039] Preferably, the cover plate can be made of cardboard, film or mesh material.

[0040] Preferably, the chassis is connected to the bottom surface of the inner cavity of the box cover.

[0041] Preferably, the opening through which the ejection plate passes is located in the middle of the upper surface of the box cover.

[0042] Preferably, the hole for the pull rope to pass through is located on one side of the upper surface of the lid, or on the side of the lid.

[0043] Preferably, the carrying device is equipped with a signal generating device.

[0044] Preferably, the signal generating device is one or more of an electrical signal generating device, an optical information generating device, an audio signal generating device, and a vibration signal generating device.

[0045] Preferably, the bottom wall of the enclosure has a single-layer or multi-layer structure. Preferably, the bottom of the enclosure is equipped with a cushioning mechanism.

[0046] Preferably, the side walls of the enclosure have a single-layer or multi-layer structure. Preferably, the side wall surface of the enclosure is provided with a cushioning mechanism.

[0047] Preferably, the buffer mechanism is a pad or an airbag.

[0048] Preferably, the pad or airbag has an arched or arc-shaped structure.

[0049] Preferably, the cushioning mechanism is made of a soft material. For example, the cushioning mechanism can be any of the following: cardboard, corrugated paper, honeycomb paper, foam board, airbag, etc.

[0050] In this invention, the chassis is a thin plate structure, preferably circular or square, and preferably disc-shaped. It is made of metal or plastic and has through holes for the locking mechanism to pass through. In this invention, the chassis serves to support (the launch plate, tray, elastic element, and stabilizing parachute, etc.) and connect to external components using the device (such as supply drop boxes and stabilizing parachutes). It can generally be integrally cast, or it can be manufactured through stamping, cutting, and welding.

[0051] In this invention, the ejection plate is a thin plate structure, preferably circular or square, and preferably disc-shaped. It is made of metal or plastic, and its bottom surface has a locking mechanism and can have openings or grooves corresponding to the support slots. The ejection plate compresses the elastic element downwards and engages with a locking plate located below the bottom surface of the chassis through the locking mechanism. The elastic element, locking mechanism, and locking plate work together to lock the ejection plate in place. The folded canopy of the stabilizing parachute is placed on the surface of the ejection plate, and the parachute ropes are placed in the support slots of the tray or grooves on the surface of the ejection plate, with the bottom ends of the ropes connected to the support slots or grooves. When the canopy of the stabilizing parachute is ejected and opened by the ejection plate, the ropes are pulled out of the support slots or grooves, taut, and then pulled through the support slots or grooves to traction the entire ejection-type parachute opening device. This device then connects to a delivery device (such as a supply drop box) using the ejection-type parachute opening device.

[0052] In this invention, the elastic element is a crucial component for achieving its objective. Its main function is to eject the launch plate after it is released from the locking plate. In a preferred embodiment, the elastic element is a tower-shaped spring, with its bottom fixed to the chassis surface by multiple limiting buckles fixed to the chassis surface. This prevents the elastic element from shifting horizontally and ensures a good connection between the elastic element and the chassis, providing excellent support stability for better upward ejection of the launch plate. It should be noted that in the initial state, the elastic element is pre-compressed and tightened by the downward movement of the launch plate. It should also be noted that the elastic element can be welded to the chassis or secured using buckles. The top of the elastic element can directly abut against the bottom surface of the launch plate (direct contact when in the compressed state; separation when in the launch state; preferably, the chassis and the launch plate are connected by a limiting rope); the top of the elastic element can also be directly connected to the launch plate (when the device is in the locked state, the elastic element is compressed and stores the elastic modulus; when the device is in the unlocked and released state, the elastic element applies elastic force to the launch plate, and at the same time, the elastic element limits the launch plate to prevent the launch plate from separating from the entire device).

[0053] Furthermore, when this invention includes a tray, a through hole (i.e., a first through hole) needs to be provided on the tray for the elastic element to pass through. The diameter of this through hole generally needs to be large enough for the elastic element to pass through and be in a naturally extended state. In addition, a groove is formed by a downward indentation in the middle of the tray (or a hole can be made in the middle of the tray, and then a pipe with only an opening at the top is welded below the hole). An opening or groove corresponding to the groove is provided in the middle of the launch plate directly above the groove. That is, when the folded stabilizing umbrella is placed on the surface of the launch plate, the parachute rope can be placed in the groove or groove through the opening and fixedly connected to the groove or groove (for example, a fixing ring or fixing hook is provided in the groove or groove, and the parachute rope is tied to the fixing ring or fixing hook). Then, when the canopy of the stabilizing umbrella is launched out by the launch plate and unfolds, the parachute rope also pops out and straightens and tightens, thereby providing traction for the canopy.

[0054] In this invention, the locking mechanism on the bottom surface of the ejector plate is a locking post. A groove (e.g., an annular groove) is provided at the bottom of the locking post along its sidewall. As the ejector plate compresses the elastic element downwards, the locking post also passes downwards through pre-set openings on the chassis and tray, extending below the bottom surface of the chassis and through the wide end of the locking plate's locking hole. Then, the locking plate is rotated, causing the locking hole to engage with the groove of the locking post, thereby locking the locking post and preventing it from retracting upwards. Simultaneously, under the pre-tightening action of the elastic element, the ejector plate, along with the locking post, tends to move upwards, and the corresponding locking plate is locked by the groove of the locking post against the lower side of the chassis's bottom surface. Alternatively, the locking mechanism is a curved rod-like structure, including a vertical rod and a horizontal rod (overall L-shaped). The lower end of the L-shaped rod passes through the locking hole, and then the locking plate is rotated, causing the horizontal rod of the L-shaped rod to extend below the bottom surface of the locking plate and be locked in place.

[0055] Furthermore, when a tray is provided between the chassis and the ejection plate, due to the certain gap between the tray and the chassis—that is, the two pre-set through holes on the chassis and tray for the locking mechanism to pass through are not overlapping to form a continuous channel structure—it is difficult to quickly and accurately allow the locking mechanism to pass through the pre-set through holes on the tray and chassis from top to bottom during the downward locking process of the ejection plate. Simultaneously, during the upward ejection process of the ejection plate, because the vertical depth of the locking mechanism extending into the through holes on the chassis is relatively shallow, the locking mechanism easily slips out of the chassis after the locking plate releases its lock. The mechanism retracts upwards through the through-hole on the tray. However, during further upward retraction, the locking mechanism may tilt, causing significant friction or even jamming as it passes through the through-hole, thus affecting the ejection of the ejection plate. Therefore, to avoid this phenomenon, a preferred embodiment of this invention is to provide a vertical hollow tube as a connecting pipe between the two through-holes on the chassis and tray for the locking mechanism to pass through. This ensures that the locking mechanism moves almost vertically during retraction and ascent, greatly reducing friction loss and preventing potential jamming. It should be noted that the connecting pipe can be a connector welded between the two through-holes or a through-piece that runs sequentially through the tray and chassis from top to bottom. It should also be noted that when there is no tray, the connecting pipe is vertically positioned on the through-hole of the chassis.

[0056] In this invention, the locking plate is a plate-shaped structure with variable-diameter locking holes (i.e., the locking holes are formed by connecting two hollow holes with different inner diameters). In a preferred embodiment, the locking plate is a ring-shaped structure with multiple locking holes, each corresponding to a locking mechanism. A pull rope connecting arm is provided on one side of the locking plate for connecting the locking plate body and the pull rope. Pulling the pull rope connecting arm allows the locking plate body to rotate at a certain angle, thereby allowing the bottom end of the locking mechanism to enter from the smaller hollow hole end of the locking hole into the larger hollow hole end, thus releasing the lock.

[0057] In this invention, to ensure that the pull rope pulls the connecting arm so that the ring plate rotates horizontally, a cantilever extends outward from the edge of the chassis in the same direction as the outer end of the handle. A guide wheel is mounted on the cantilever, and the pull rope passes through the guide wheel and connects tangentially to the locking plate. Furthermore, the locking plate has a connecting hole (arc-shaped or strip-shaped). The locking plate is connected to the chassis via a connecting shaft and the connecting hole (i.e., the upper end of the connecting shaft is connected to the bottom of the chassis, extending into the connecting hole and moving freely within it; the bottom end of the connecting shaft has an expansion portion with a diameter larger than the width of the connecting hole, for example, a nut is threaded onto it as the expansion portion). In use, the operator simply holds the outer end of the pull rope and throws the item containing the ejector-type parachute device from a height. Under the weight of the item, the pull rope tightens, pulling the locking plate horizontally and releasing the locking of the ejector plate, allowing the stabilizing parachute to launch.

[0058] It should be noted that, in the preferred embodiment, the material and thickness of the pull rope should be selected so that it can fully pull the card plate to achieve the rotation to cancel the locking function. After that, without the operator releasing the pull rope, the weight of the item to be airdropped should cause the pull rope to break naturally.

[0059] In this utility model, it should be noted that, in order to reduce the weight of the device, in addition to the necessary openings, through-type structural holes are also provided on the chassis, tray, clamping plate, ejection plate, etc. to reduce their weight.

[0060] In this invention, by installing a specially structured ejector-type parachute deployment device in the lid of the cargo container, the parachute deployment efficiency can be significantly improved, and there is no need to install a specific airdrop system in the aircraft, greatly reducing delivery costs and significantly improving airdrop efficiency. Furthermore, the airdrop container of this invention adopts a single-layer or multi-layer structure (preferably a single-layer or multi-layer honeycomb cardboard structure), which can greatly reduce the impact force when the container lands, ensuring the integrity of the contents. Since the container itself has a cushioning effect, the stabilizing parachute is a small one, whose main function is to ensure that the container lands bottom-down; that is, the stabilizing parachute mainly plays a guiding role, which helps to further ensure the integrity of the contents after landing. In addition, since the stabilizing parachute only provides a small descent slowing effect, it is difficult to change the trajectory of the cargo container; that is, the container is essentially in free fall. This effectively ensures the accuracy of the airdrop container's landing point, enabling precise airdrops.

[0061] In this invention, the surface of the lid has an opening for the ejector plate to pass through and a hole for the pull rope to pass through. This allows the outer end of the pull rope to extend outside the lid for easy and quick access. Furthermore, it is preferable to cover both the opening for the ejector plate and the hole for the pull rope with a thin paper cover to prevent the pull rope and umbrella from dislodging during transport due to vibration. In use, simply puncture the paper seal and pull the rope; the umbrella will then be ejected upwards by the ejector-type opening device, breaking the paper seal at its exit. Further, intermittent tear lines can be provided on the paper seal. Even further, to facilitate pulling the pull rope, a pull ring or hook is provided at the outer end of the rope. In use, simply hook the pull ring or hook onto your finger and throw the carrying device. During the descent of the box, the pull rope will taut and break after the ejector plate is unlocked by pulling the locking plate.

[0062] In this invention, to improve the cushioning effect when the box lands, at least one arched or arc-shaped pad is provided at the bottom of the box to reduce the impact force when the box lands. In a preferred embodiment, the pad is a honeycomb arched cushioning pad. When the box lands, the contents inside exert a downward impact force on the horizontal plate of the arched cushioning pad under the action of inertia. Then, the horizontal plate of the arched cushioning pad transfers the impact force to the vertically bent sections at both ends. The continuous compression and deformation of the bent sections achieves primary cushioning. At the same time, there is a cavity of a certain height between the arched cushioning pad and the bottom wall of the box. As the horizontal plate of the arched cushioning pad compresses its vertical bent sections, the air in the cavity is... Since it cannot be completely drained instantly, it can also serve as a secondary buffer for the arched buffer pad. Finally, when the horizontal plate of the arched buffer pad comes into contact with the bottom wall of the container, the honeycomb structure of the horizontal plate of the buffer pad and the honeycomb structure of the bottom plate of the container collapse and deform to achieve a tertiary buffer for the materials inside the container. In other words, through the multiple levels of buffering such as the bent section of the arched buffer pad, the interlayer cavity, and the horizontal plate of the arched buffer pad and the bottom plate of the container, the impact force generated by the inertia of the materials when the container lands is greatly absorbed, effectively ensuring the integrity of the materials.

[0063] In airdrop applications, due to the harsh environments and conditions, airdrops are primarily used for combat readiness and emergency supplies. Ensuring timeliness and accuracy is crucial, while overcoming the challenges of power outages, signal disruptions, and adverse weather conditions. Therefore, the reliability of the airdrop equipment itself is extremely important. Existing technologies utilize electronic control devices for parachute deployment and buffering. However, in extreme situations, electronic equipment is highly susceptible to interference or damage, affecting the reliability of the airdrop. This invention eliminates reliance on electronic control, employing a purely mechanical triggering mechanism to achieve coordinated control of parachute deployment and buffering.

[0064] In this invention, the chassis serves to fix and support the parachute. Through the actions of the launch plate, elastic element, locking plate, and pull rope, the entire launch-type parachute deployment device is fully mechanized, eliminating the use of electronic components and thus improving the device's anti-interference performance and launch success rate. Specifically, when the airdrop container falls to the set height, the pull rope, under the action of gravity, drives the locking plate to rotate, thereby releasing the restriction on the launch plate. At this time, the elastic element releases its stored energy, pushing the launch plate to move rapidly upwards, which in turn causes the stabilizing parachute to quickly launch and deploy.

[0065] In this invention, the card plate can be a plate-shaped structure with snap-fit ​​holes. A pull rope connecting arm is provided on one side of the card plate. In a preferred embodiment, the center of the card plate is connected to the chassis via a rotating shaft. This connection allows the card plate to rotate around the shaft, facilitating the separation of the card plate from the snap-fit ​​mechanism.

[0066] In this invention, the locking mechanism can be understood as a structure for achieving mechanical locking and rapid release, which can be implemented in various ways. For example, the locking mechanism can be designed as a columnar body with protrusions or grooves, achieving locking and unlocking through geometric fit; or a multi-segment telescopic structure can be used, utilizing the diameter differences of different segments to form a limiting relationship with the locking hole. Furthermore, the locking hole can also be designed in various ways, such as a stepped hole diameter structure or a combination of multiple hollow holes, to achieve a dual limiting effect on the locking mechanism. The main purpose of this design is to ensure the stability of the locked state while enabling rapid disengagement upon triggering.

[0067] In this invention, the elastic element can be of various forms to achieve the energy storage and release functions. For example, the elastic element can be a leaf spring, a coil spring, or a structure made of other materials with elastic recovery capabilities. Its main function is to provide sufficient ejection force to propel the launch plate rapidly after the lock is released. As a preferred embodiment, the number and arrangement of the elastic elements can be adjusted according to actual needs. For example, multiple elastic elements can be evenly distributed between the chassis and the launch plate to improve the smoothness of the launch process.

[0068] In this invention, the design of the card plate can achieve its function in various ways. For example, the card plate can be designed as a flat plate structure with a groove, and displacement control can be achieved through the cooperation of the groove and the chassis; or it can adopt a ring structure with a rotating shaft, and rotational triggering can be achieved through the cooperation of the rotating shaft and a fixed shaft on the chassis. The connection method between the pull rope and the card plate can also be diversified, such as achieving the pulling effect of the pull rope on the card plate through hooks, loops, or direct fixing.

[0069] In this invention, the locking plate refers to the component used to lock and fix the launch plate to the chassis. It can be implemented using a plate-shaped or ring-shaped structure. The plate-shaped structure has higher rigidity and is suitable for scenarios requiring greater load-bearing capacity, while the ring-shaped structure enhances the uniformity of force distribution through its circumferential distribution characteristics, making it suitable for scenarios requiring high rotational flexibility. The locking hole refers to a through-hole structure used to cooperate with the locking mechanism. It can be circular, square, or other adaptable shapes, and its purpose is to ensure that the locking post or bending structure can stably pass through and achieve its positioning function. The pull rope connecting arm refers to an extension structure located on one side of the locking plate. Its function is to provide a reliable force application point for the pull rope, thereby transmitting external force to the locking plate to trigger the parachute opening device. The connecting hole refers to a through-hole structure used to cooperate with the connecting shaft on the chassis. It can be round, square, or other adaptable shapes, and its purpose is to achieve radial positioning between the locking plate and the chassis while maintaining rotational flexibility. The pull rope fixing hole refers to the through hole structure set on the pull rope connecting arm. Its function is to prevent the pull rope from deviating by limiting the hole wall and to optimize the lever effect of force, thereby improving the torque output efficiency when pulling.

[0070] In this invention, the locking mechanism refers to a mechanical structure used to achieve the locking and releasing functions between the ejection plate and the locking plate. It can employ a stepped locking post design, achieving a double locking effect through the cooperation of different diameter segments; or it can adopt a curved structure, utilizing the spatial combination of vertical and horizontal bars to form a planar contact lock. The locking post refers to a cylindrical structure with a specific geometric shape, and the groove at its end can be formed into an annular groove or symmetrical cut through machining. The stepped locking hole design can be achieved using stamping or precision casting processes, aiming to provide a smooth assembly process while ensuring reliable axial limiting. The vertical and horizontal bars in the curved structure can be integrally formed metal components, or assembled by welding or threaded connections, aiming to optimize stress distribution and improve structural stability.

[0071] In this invention, the elastic element refers to the core component that provides the ejection power, which can be implemented using a helical spring, plate-shaped spring, or other structures with elastic deformation capabilities made of metal materials. The through hole is a specific area on the chassis used to accommodate the movement path of the locking mechanism. Furthermore, the range of n elastic elements is designed to accommodate different load requirements; the base number meets the minimum ejection requirements; the preferred range enhances structural stability through distributed support; and the optimal range balances strength and cost.

[0072] In this invention, the tray refers to an intermediate structure with load-bearing and guiding functions, which can be made by stamping metal sheets or injection molding high-strength engineering plastics. The first through-hole is a through-hole providing a movement channel for the elastic element; it can be designed in different shapes such as circular, elliptical, or polygonal, to ensure the elastic element maintains axial stability during movement. The second through-hole is an independent channel specifically designed for the locking mechanism. The tray achieves precise guidance for both the elastic element and the locking mechanism through its specific structural design. The first through-hole not only provides a stable movement trajectory for the elastic element but also effectively avoids stress concentration caused by lateral offset. The second through-hole, through its independent channel design, significantly reduces contact interference between the locking mechanism and other components, improving the smoothness of movement.

[0073] In this invention, the guide wheel refers to a guiding structure used to change the direction of force on the pull rope. It can be implemented using pulleys, rollers, or other mechanical components with similar functions. The purpose of setting the guide wheel is to optimize the force path of the pull rope, avoid friction interference caused by direct contact between the pull rope and the device body, and thus ensure that the pulling force can be efficiently transmitted to the locking plate. The parachute fixing device can be understood as a structure that physically limits the parachute body, and it can be implemented using buckles, straps, clamps, or multi-point fixing brackets. The setting of the guide wheel precisely constrains the direction of force on the pull rope, avoiding deviation or jamming of the pull rope during pulling, thereby significantly improving the reliability of the locking plate release action.

[0074] In this invention, a signal generating device is used to emit a signal of a specific frequency after the airdrop system is deployed, for locating the cargo carrier. The signal generating device can be one or more of an electrical signal generator, an optical signal generator, an acoustic signal generator, or a vibration signal generator. The signal generating device can transmit the cargo carrier's location information in real time, facilitating subsequent tracking and retrieval. Even in complex terrain or adverse weather conditions, the signal generating device can operate stably, ensuring accurate transmission of positioning information. The signal generating device can emit one or more combinations of electrical signals, radio signals, optical signals, acoustic signals, or vibration signals to achieve efficient positioning and tracking under different environmental conditions. The signal generating device is a mature device in the prior art, and appropriate models and parameter configurations can be selected according to actual application needs. Its installation method is flexible and diverse; it can be integrated inside the cargo carrier or fixed to an external structure, ensuring stability and reliability throughout the entire airdrop process.

[0075] In this invention, by combining the ejector-type parachute deployment device with the cargo carrier and the stabilizing parachute, an airdrop system with mechanical triggering characteristics is formed. This avoids reliance on electronic sensors or complex control systems, significantly improving the system's adaptability to harsh environments. Specifically, the cargo carrier, as the main material carrier, achieves mechanical drive for the parachute deployment action through the integrated ejector-type parachute deployment device, ensuring stable parachute deployment even under strong electromagnetic interference or extreme weather conditions. Simultaneously, the direct connection structure between the stabilizing parachute and the ejector-type parachute deployment device or the cargo carrier A ensures that the parachute can rapidly deploy and maintain a stable aerodynamic shape after triggering.

[0076] In this invention, the container body refers to the main load-bearing structure used for loading supplies. It can be made of metal, composite materials, cardboard, or other high-strength materials to ensure effective protection of the internal supplies during airdrop. The open-top design facilitates loading and unloading of supplies and also provides space for the integration of the loading device and the ejection-type parachute deployment device. The container lid is the closed component covering the open portion of the container body. Its cavity structure provides independent installation space for the ejection-type parachute deployment device and the stabilizing parachute, avoiding mechanical interference with the supplies inside the container. The opening design on the upper surface of the lid ensures that the ejection plate can eject in a straight line along a predetermined trajectory upon triggering, while the holes on the outer surface of the lid, through a reasonable positioning design, create a spatial misalignment between the lead-out path of the pull cord and the ejection direction, thereby reducing the risk of path conflict during operation.

[0077] In this invention, when the material airdrop system lands, the multi-layered bottom wall of container A reduces the impact energy transfer efficiency through interlayer friction energy dissipation, thereby effectively protecting the internal materials. Under vertical impact, the arched or arc-shaped pads convert concentrated loads into dispersed forces along the curved surface tangentially, avoiding localized damage caused by rigid impacts. Simultaneously, the multi-layered structure of the side walls works in conjunction with the arc-shaped pads to balance lateral impact forces in non-vertical landing situations, preventing localized stress concentration in the container. This design not only maintains structural simplicity but also achieves multi-path dissipation of impact energy through optimized material distribution and morphological adaptability, solving the problem of protection against multi-directional impact loads under complex terrain conditions. Furthermore, this solution, combined with the aforementioned ejection-type parachute deployment device, can enhance the impact resistance of materials while ensuring accurate delivery, meeting the actual needs of emergency rescue.

[0078] In this invention, the bottom end of the elastic element is connected to the chassis, and the top end of the elastic element is connected to the bottom surface of the ejection plate. The elastic element is located directly above the through hole. The locking mechanism on the ejection plate passes through the elastic element and the through hole in sequence and then connects to the locking hole on the locking plate. Alternatively, the bottom end of the elastic element is connected to the chassis. When the elastic element is compressed, the top end of the elastic element abuts against the bottom surface of the ejection plate. When the elastic element is in an uncompressed state, the elastic element separates from the ejection plate. The locking mechanism on the ejection plate passes through the through hole and then connects to the locking hole on the locking plate. The elastic element is located between the ejection plate and the chassis. Preferably, a pull rope for limiting the movement is provided between the ejection plate and the chassis to prevent the ejection plate from separating from other parts of the device after it is ejected.

[0079] In this invention, the diameter of the ejection plate is 1-2000 cm, preferably 2-1500 cm, and more preferably 3-1000 cm. The diameter of the clamping plate is 10%-500% of the diameter of the chassis, preferably 15-300%, and more preferably 20-100%. The height of the elastic element (under no external force) is 0.5-200 cm, preferably 1-150 cm, and more preferably 2-100 cm.

[0080] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0081] 1. The ejection-type parachute device provided by this utility model can realize the rapid ejection of the stabilizing parachute through purely mechanical pulling action. It has a simple structure, stable ejection, and is easy to operate. It can be used for both large and small airdrop items, and is particularly suitable for the rapid and accurate delivery of low-altitude emergency rescue materials. It has a wide range of applications, high stability, low manufacturing cost, and is easy to promote and apply on a large scale.

[0082] 2. Using the ejector-type parachute deployment device provided by the utility model, when the pull rope is pulled, the locking plate will move and the locking mechanism will disengage from the locking hole. The elastic element will release the stored elastic force, pushing the ejector plate to move upward quickly, thereby realizing the rapid deployment of the stabilizing parachute.

[0083] 3. The material delivery device of this utility model, combined with the ejection-type parachute opening device, not only achieves efficient and accurate material delivery, but also has the advantage of high integrity of the delivered materials, significantly reducing material loss, improving the actual delivery efficiency of materials, and having strong anti-interference ability. It is not affected by electronic equipment failure, battery power and harsh environment, which is conducive to effectively protecting the lives of people in disaster areas. Attached Figure Description

[0084] Figure 1 This is a schematic diagram of the overall structure of the ejector-type parachute opening device of this utility model.

[0085] Figure 2This is a schematic diagram of the ejector-type parachute opening device of this utility model in the locked state.

[0086] Figure 3 This is a schematic diagram of the structure in the ejector-type parachute opening device of this utility model, in which the two ends of the elastic element are directly connected to the base plate and the ejector plate.

[0087] Figure 4 This is a schematic diagram of the chassis structure of this utility model.

[0088] Figure 5 This is a schematic diagram of the structure of the catapult plate of this utility model.

[0089] Figure 6 This is a schematic diagram of two different structures of the snap-fit ​​post of this utility model.

[0090] Figure 7 This is a schematic diagram of the structure of the card plate of this utility model.

[0091] Figure 8 This is a schematic diagram of the structure of the tray of this utility model.

[0092] Figure 9 This is a front sectional view of the material airdrop system of this utility model.

[0093] Figure 10 This is a top view of the cover of the material airdrop system of this utility model.

[0094] Reference numerals: 1: Chassis; 101: Through hole; 102: Guide wheel; 2: Launch plate; 201: Snap-fit ​​mechanism; 202: Opening or groove; 3: Elastic element; 4: Clamping plate; 401: Connecting hole; 402: Pull rope fixing hole; 403: Snap-fit ​​hole; 5: Pull rope; 6: Tray; 601: Slot; 602: First through hole; 603: Second through hole; 604: Connecting pipe; A: Carrying device; A01: Box body; A02: Box cover; B: Stabilizing umbrella. Detailed Implementation

[0095] The technical solution of this utility model is illustrated below. The scope of protection of this utility model includes, but is not limited to, the following embodiments.

[0096] A catapult-type parachute deployment device includes a base 1, a catapult plate 2, an elastic element 3, a locking plate 4, and a pull rope 5. The catapult plate 2 is positioned above the base 1. The locking plate 4 is positioned below the base 1. The elastic element 3 is positioned between the base 1 and the catapult plate 2. A locking mechanism 201 is provided on the bottom surface of the catapult plate 2. The base 1 has a through hole 101 through which the locking mechanism 201 passes. The locking plate 4 has a locking hole 403 connected to the locking mechanism 201. The locking mechanism 201 passes through the through hole 101 on the base 1 and connects to the locking hole 403. The pull rope 5 is connected to the locking plate 4.

[0097] Preferably, the clamping plate 4 is a circular plate structure, and the clamping plate 4 is provided with a clamping hole 403. A pull rope connecting arm is provided on one side of the clamping plate 4. Preferably, the center of the clamping plate 4 is connected to the chassis 1 via a rotating shaft.

[0098] Preferably, the clamping plate 4 has a ring-shaped structure and a clamping hole 403. A pull rope connecting arm is provided on one side of the clamping plate 4. Preferably, the clamping plate 4 has a connecting hole 401, and a connecting shaft is fixedly provided on the bottom of the chassis 1. The clamping plate 4 is connected to the chassis 1 via the connecting shaft and the connecting hole 401.

[0099] Preferably, a washer is provided between the connecting shaft and the connecting hole 401.

[0100] Preferably, the connecting shaft is a bolt.

[0101] Preferably, the pull rope connecting arm is provided with a pull rope fixing hole 402.

[0102] Preferably, the locking mechanism 201 is a locking post, one end of which is fixedly connected to the bottom surface of the ejector plate 2, and the other end of which has a groove. The locking hole 403 consists of two hollow holes with different inner diameters. The inner diameter of the larger hollow hole is larger than the outer diameter of the locking post, and the inner diameter of the smaller hollow hole is smaller than the outer diameter of the locking post but larger than the diameter of the groove on the locking post. The groove of the locking post engages with the hollow hole of the locking hole 403.

[0103] Preferably, the locking mechanism 201 is a curved structure, including a vertical rod and a horizontal rod. One end of the vertical rod is fixedly connected to the bottom surface of the ejector plate 2, and the other end of the vertical rod is connected to the horizontal rod. The locking hole 403 is a hollow hole structure. The inner diameter of the hollow hole is larger than the width of the locking mechanism 201. The locking mechanism 201 passes through the locking hole 403, and the horizontal rod of the locking mechanism 201 acts on the locking plate 4.

[0104] Preferably, the perforated hole is semi-circular, circular, or square.

[0105] Preferably, one end of the elastic element 3 is connected to the upper surface of the chassis 1. The other end of the elastic element 3 is connected to or acts on the lower surface of the launch plate 2. The elastic element 3 is a compression spring, which is fitted outside the locking mechanism 201. When the launch plate 2 is subjected to downward pressure, the elastic element 3 is compressed, generating a restoring elastic force. After the locking mechanism 201 and the locking hole 403 are engaged, the elastic element 3 is in a compressed state and stores energy. By pulling the pull rope 5, the locking plate 4 rotates around the connecting shaft, the locking hole 403 disengages from the locking mechanism 201, releasing the elastic force of the elastic element 3, thereby driving the launch plate 2 to launch rapidly upward, realizing the parachute opening function.

[0106] Preferably, the elastic element 3 is a sheet or a spring.

[0107] Preferably, the elastic element 3 is disposed above the through hole 101.

[0108] Preferably, n elastic elements 3 are provided between the chassis 1 and the catapult plate 2. n is 1-500, preferably 2-300, and more preferably 3-100.

[0109] Preferably, the device also includes a tray 6. The tray 6 is located between the chassis 1 and the ejector plate 2, and the tray 6 is connected to the upper surface of the chassis 1. The tray 6 is provided with a first through hole 602 for the elastic element 3 to pass through and a second through hole 603 for the locking mechanism 201 to pass through.

[0110] Preferably, the second through hole 603 and the through hole 101 are connected by a hollow tube.

[0111] Preferably, a downwardly recessed groove 601 is provided in the middle of the tray 6, the bottom end of the groove 601 is connected to the middle surface of the chassis 1, and an opening or groove 202 corresponding to the groove 601 is provided in the middle of the ejection plate 2.

[0112] Preferably, a guide wheel 102 is provided on one side of the chassis 1. The pull rope 5 passes through the guide wheel 102 and is connected to the clamping plate 4.

[0113] Preferably, the chassis 1, the catapult plate 2, or the tray 6 is equipped with a parachute fixing device.

[0114] Preferably, the end of the pull rope 5 is provided with a pull ring or hook.

[0115] Preferably, the catapult plate 2 is equipped with a signal generating device.

[0116] Preferably, the signal generating device is one or more of an electrical signal generating device, an optical information generating device, an audio signal generating device, and a vibration signal generating device.

[0117] A material airdrop system includes a cargo carrier A, a stabilizing parachute B, and a catapult-type parachute deployment device as described above. The stabilizing parachute B and the catapult-type parachute deployment device are mounted on the cargo carrier A, and the stabilizing parachute B is connected to the catapult-type parachute deployment device or the cargo carrier A.

[0118] Preferably, the cargo carrier A is an airdrop container; the airdrop container includes a container body A01 and a container cover A02. The container body A01 has an open-top structure, and the container cover A02 closes onto the open top of the container body A01. The container cover A02 has a cavity structure with an inner cavity, and an ejector-type parachute deployment device and a stabilizing parachute B are disposed in the inner cavity of the container cover A02.

[0119] Preferably, the upper surface of the box cover A02 has an opening through which the ejector plate 2 passes. The outer surface of the box cover A02 has a hole through which the pull rope 5 passes.

[0120] Preferably, the opening through which the catapult plate 2 passes is provided with a cover plate.

[0121] Preferably, the cover plate is bonded to the box cover A02 or connected by an easy-tear line.

[0122] Preferably, the chassis 1 is connected to the bottom surface of the inner cavity of the cover A02.

[0123] Preferably, the opening through which the ejector plate 2 passes is located in the middle of the upper surface of the box cover A02.

[0124] Preferably, the hole through which the pull rope 5 passes is located on one side of the upper surface of the box cover A02, or on the side of the box cover A02.

[0125] Preferably, the carrier device A is equipped with a signal generating device.

[0126] Preferably, the signal generating device is one or more of an electrical signal generating device, an optical information generating device, an audio signal generating device, and a vibration signal generating device.

[0127] Preferably, the bottom wall of the box A01 has a single-layer or multi-layer structure.

[0128] Preferably, the bottom of the housing A01 is provided with a buffer mechanism.

[0129] Preferably, the sidewalls of the housing A01 have a single-layer or multi-layer structure.

[0130] Preferably, the inner wall surface of the housing A01 is provided with a buffer mechanism.

[0131] Preferably, the buffer mechanism is a pad or an airbag.

[0132] Preferably, the pad or airbag has an arched or arc-shaped structure.

[0133] Preferably, the buffer mechanism is made of a soft material.

[0134] Example 1

[0135] like Figure 1-2 As shown, a catapult-type parachute deployment device includes a base 1, a catapult plate 2, an elastic element 3, a locking plate 4, and a pull rope 5. The catapult plate 2 is positioned above the base 1. The locking plate 4 is positioned below the base 1. The elastic element 3 is positioned between the base 1 and the catapult plate 2. A locking mechanism 201 is provided on the bottom surface of the catapult plate 2. The base 1 has a through hole 101 through which the locking mechanism 201 passes. The locking plate 4 has a locking hole 403 connected to the locking mechanism 201. The locking mechanism 201 passes through the through hole 101 on the base 1 and connects to the locking hole 403. The pull rope 5 is connected to the locking plate 4.

[0136] Example 2

[0137] The embodiment 1 is repeated, except that the card plate 4 is a circular plate structure, and the card plate 4 is provided with a snap-fit ​​hole 403. A pull rope connecting arm is provided on one side of the card plate 4.

[0138] Example 3

[0139] Repeat Example 2, except that the center of the card plate 4 is connected to the chassis 1 via a rotating shaft.

[0140] Example 4

[0141] The embodiment 1 is repeated, except that the card plate 4 is a ring structure and has a snap-fit ​​hole 403. A pull rope connecting arm is provided on one side of the card plate 4.

[0142] Example 5

[0143] The same method is used in embodiment 4, except that the card plate 4 is provided with a connecting hole 401, and a connecting shaft is fixedly provided on the bottom of the chassis 1. The card plate 4 is connected to the chassis 1 through the connecting shaft and the connecting hole 401.

[0144] Example 6

[0145] Repeat Example 5, except that the pull rope connecting arm is provided with a pull rope fixing hole 402.

[0146] Example 7

[0147] like Figure 5 As shown, Embodiment 6 is repeated, except that the locking mechanism 201 is a locking post. One end of the locking post is fixedly connected to the bottom surface of the ejector plate 2, and the other end of the locking post has a groove. The locking hole 403 consists of two hollow holes with different inner diameters connected together. The inner diameter of the larger hollow hole is larger than the outer diameter of the locking post, and the inner diameter of the smaller hollow hole is smaller than the outer diameter of the locking post but larger than the diameter of the groove position of the locking post. The groove of the locking post engages with the hollow hole of the locking hole 403.

[0148] Example 8

[0149] like Figure 6 As shown, Embodiment 6 is repeated, except that the latching mechanism 201 is a curved structure, including a vertical rod and a horizontal rod. One end of the vertical rod is fixedly connected to the bottom surface of the ejector plate 2, and the other end of the vertical rod is connected to the horizontal rod. The latching hole 403 is a hollow hole structure. The inner diameter of the hollow hole is larger than the width of the latching mechanism 201. The latching mechanism 201 passes through the latching hole 403, and the horizontal rod of the latching mechanism 201 acts on the latching plate 4.

[0150] Example 9

[0151] Repeat Example 8, except that the perforation is semi-circular.

[0152] Example 10

[0153] Repeat Example 8, except that the perforation is square.

[0154] Example 11

[0155] Repeat Example 8, except that the perforation is circular.

[0156] Example 12

[0157] like Figure 3 As shown, Embodiment 7 is repeated, except that one end of the elastic member 3 is connected to the upper surface of the chassis 1, and the other end of the elastic member 3 is connected to the lower surface of the catapult plate 2.

[0158] Example 13

[0159] Repeat Example 12, except that the elastic element 3 is a spring sheet.

[0160] Example 14

[0161] Repeat Example 12, except that the elastic element 3 is a tower-shaped spring.

[0162] Example 15

[0163] Repeat embodiment 14, except that the elastic element 3 is disposed above the through hole 101.

[0164] Example 16

[0165] The embodiment 14 is repeated, except that there are 6 elastic elements 3 between the chassis 1 and the catapult plate 2.

[0166] Example 17

[0167] The embodiment 14 is repeated, except that three elastic elements 3 are provided between the chassis 1 and the catapult plate 2.

[0168] Example 18

[0169] The same embodiment 17 is repeated, except that the device also includes a tray 6. The tray 6 is located between the chassis 1 and the ejector plate 2, and the tray 6 is connected to the upper surface of the chassis 1. The tray 6 is provided with a first through hole 602 for the elastic element 3 to pass through and a second through hole 603 for the locking mechanism 201 to pass through.

[0170] Example 19

[0171] Repeat Example 18, except that the second through hole 603 and the through hole 101 are connected by a hollow tube.

[0172] Example 20

[0173] The embodiment 18 is repeated, except that a downwardly recessed groove 601 is provided in the middle of the tray 6, the bottom end of the groove 601 is connected to the middle surface of the chassis 1, and an opening or groove 202 corresponding to the groove 601 is provided in the middle of the ejection plate 2.

[0174] Example 21

[0175] The same method as embodiment 20 is used, except that a guide wheel 102 is provided on one side of the chassis 1. The pull rope 5 passes through the guide wheel 102 and is connected to the clamping plate 4.

[0176] Example 22

[0177] Repeat embodiment 21, except that the chassis 1, catapult plate 2 or tray 6 are provided with umbrella fixing devices.

[0178] Example 23

[0179] Repeat Example 22, except that the end of the pull rope 5 is provided with a pull ring.

[0180] Example 24

[0181] The same embodiment 23 is repeated, except that the catapult plate 2 is equipped with a signal generating device; the signal generating device is an electrical signal generating device.

[0182] Example 25

[0183] The embodiment 23 is repeated, except that a signal generating device is provided on the catapult plate 2; the signal generating device is a light information generating device.

[0184] Example 26

[0185] The same embodiment 23 is repeated, except that the catapult plate 2 is equipped with a signal generating device; the signal generating device is a sound signal generating device.

[0186] Example 27

[0187] The same embodiment 23 is repeated, except that the catapult plate 2 is equipped with a signal generating device; the signal generating device is a vibration signal generating device.

[0188] Example 28

[0189] like Figure 9-10 As shown, a material airdrop system includes a cargo carrier A, a stabilizing parachute B, and an ejector-type parachute deployment device as described in Example 23. The stabilizing parachute B and the ejector-type parachute deployment device are mounted on the cargo carrier A, and the stabilizing parachute B is connected to the ejector-type parachute deployment device or the cargo carrier A.

[0190] Example 29

[0191] Example 28 is repeated, except that the cargo carrier A is an airdrop box; the airdrop box includes a box body A01 and a box cover A02. The box body A01 has an open upper structure, and the box cover A02 closes on the open upper part of the box body A01. The box cover A02 has a cavity structure with an inner cavity, and the ejector-type parachute opening device and the stabilizing parachute B are arranged in the inner cavity of the box cover A02.

[0192] Example 30

[0193] Example 29 is repeated, except that the upper surface of the box cover A02 has an opening through which the ejector plate 2 passes. The outer surface of the box cover A02 has a hole through which the pull rope 5 passes.

[0194] Example 31

[0195] The embodiment 30 is repeated, except that a cover plate is provided on the opening through which the catapult plate 2 passes, and the cover plate is connected to the box cover A02 by an easy-tear line.

[0196] Example 32

[0197] Repeat Example 31, except that the chassis 1 is connected to the bottom surface of the inner cavity of the box cover A02.

[0198] Example 33

[0199] The embodiment 32 is repeated, except that the opening through which the ejector plate 2 passes is located in the middle of the upper surface of the box cover A02.

[0200] Example 34

[0201] The embodiment 33 is repeated, except that the hole through which the pull rope 5 passes is located on one side of the upper surface of the box cover A02.

[0202] Example 35

[0203] The embodiment 34 is repeated, except that the carrier device A is equipped with a signal generating device; the signal generating device is an electrical signal generating device.

[0204] Example 36

[0205] The embodiment 34 is repeated, except that the carrier device A is equipped with a signal generating device; the signal generating device is an optical information generating device.

[0206] Example 37

[0207] The embodiment 34 is repeated, except that the carrier device A is equipped with a signal generating device; the signal generating device is a sound signal generating device.

[0208] Example 38

[0209] Repeat Example 34, except that the bottom of the box A01 has a multi-layer structure.

[0210] Example 39

[0211] Repeat Example 38, except that a buffer mechanism is provided at the bottom of the housing A01.

[0212] Example 40

[0213] Example 34 is repeated, except that the side wall of the box A01 is a multi-layer structure.

[0214] Example 41

[0215] Repeat Example 40, except that the side wall surface of the housing A01 is provided with a buffer mechanism, which is a pad.

[0216] Example 42

[0217] Repeat Example 41, except that the buffer mechanism is an arched paper pad.

[0218] When using the above-mentioned material airdrop system, first install and fix the ejector-type parachute opening device, which has been equipped with the stabilizing parachute B, in the inner cavity of the box cover A02. Then, first put the buffer mechanism into the inner cavity of the box body A01, then put in the airdropped materials, and finally fix the box cover A02 to the top opening of the box body A01. During airdrop, slip the pull ring or hook of the pull rope 5 onto your finger, and then drop the entire container A01 from the airdrop port in a freefall manner. As container A01 falls, the pull ring or hook straightens the pull rope 5 and activates the ejection-type parachute deployment device to launch and open the stabilizing parachute B, thus ensuring that container A01 is positioned with its bottom facing down. At the same time, the pull rope 5 breaks under the weight of container A01, and container A01 will fall to the predetermined location in a near-freefall manner. When container A01 hits the ground, the honeycomb bottom of container A01, the bent section of the buffer pad, the horizontal plate of the buffer pad, and the pre-reserved interlayer cavity between the buffer pad and the bottom of the container work together to provide multi-level cushioning for the materials inside the container, thereby significantly reducing the impact damage to the materials.

[0219] The working principle of this embodiment is as follows: The chassis 1 serves as the basic support structure of the entire device, with a catapult plate 2 mounted on top of it and connected to the catapult plate 2 via an elastic element 3. The elastic element 3 is compressed in its initial state to accumulate the potential energy required for catapult launch. A locking mechanism 201 is provided on the bottom surface of the catapult plate 2. This locking mechanism 201 passes through a through hole 101 on the chassis 1 and connects to a locking hole 403 on the locking plate 4, thus forming a mechanical locking state. The special fit design between the locking mechanism 201 and the locking hole 403 ensures the reliability of the locking and avoids false triggering due to external interference. The locking plate 4 is located below the chassis 1 and is connected to it via a pull rope 5. The force state of the pull rope 5 directly determines the position change of the locking plate 4. When the pull rope 5 is pulled by an external force, the locking plate 4 moves accordingly, causing the locking mechanism 201 to disengage from the locking hole 403. At this time, the elastic element 3 releases the accumulated energy, pushing the catapult plate 2 upwards rapidly, thereby launching the stabilizing parachute out of the cabin. This mechanical triggering mechanism relies entirely on the linkage of the physical structure, without the need for an electronic control system, thus maintaining high stability and anti-interference capabilities in harsh environments. Furthermore, the locking plate 4 can adopt a plate-like or ring-like structure and connect to the chassis 1 via a rotating shaft or connecting shaft, enabling it to adapt to tensile forces in different directions, thereby improving the device's environmental adaptability. The locking mechanism 201 is designed as a grooved locking post or a curved structure. By matching the geometric dimensions with the locking hole 403, it ensures shear strength in the locked state and enables rapid unlocking through geometric interference during release, effectively solving the problems of jamming or delayed release in traditional mechanical locks. Therefore, this device achieves reliable ejection of the stabilizing parachute through mechanical linkage, solving the problems of low parachute opening efficiency, unstable triggering, and weak anti-interference capabilities in existing technologies, while simultaneously improving the stability and reliability of the mechanical structure.

[0220] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A catapult-type parachute deployment device, characterized in that: The device includes a chassis (1), a catapult plate (2), an elastic element (3), a locking plate (4), and a pull rope (5); the catapult plate (2) is located above the chassis (1); the locking plate (4) is located below the chassis (1); the elastic element (3) is located between the chassis (1) and the catapult plate (2); the bottom surface of the catapult plate (2) is provided with a locking mechanism (201); the chassis (1) is provided with a through hole (101) through which the locking mechanism (201) passes; the locking plate (4) is provided with a locking hole (403) connected to the locking mechanism (201); the locking mechanism (201) passes through the through hole (101) on the chassis (1) and is connected to the locking hole (403); the pull rope (5) is connected to the locking plate (4).

2. The ejector-type parachute opening device according to claim 1, characterized in that: The card plate (4) has a plate-like structure and is provided with snap-fit ​​holes (403); a pull rope connecting arm is provided on one side of the card plate (4); preferably, the center of the card plate (4) is connected to the chassis (1) via a rotating shaft; or, The clamping plate (4) has a ring structure and a snap-fit ​​hole (403) on it; a pull rope connecting arm is provided on one side of the clamping plate (4); preferably, the clamping plate (4) has a connecting hole (401) and a connecting shaft is fixedly provided on the bottom of the chassis (1); the clamping plate (4) is connected to the chassis (1) through the connecting shaft and the connecting hole (401); preferably, a washer is provided between the connecting shaft and the connecting hole (401); preferably, the connecting shaft is a bolt. Preferably, the pull rope connecting arm is provided with a pull rope fixing hole (402).

3. The ejection-type parachute deployment device according to claim 1 or 2, characterized in that: The locking mechanism (201) is a locking post, one end of which is fixedly connected to the bottom surface of the ejector plate (2), and the other end of which is provided with a groove; the locking hole (403) is a connection of two hollow holes with different inner diameters; the inner diameter of the larger hollow hole is larger than the outer diameter of the locking post, and the inner diameter of the smaller hollow hole is smaller than the outer diameter of the locking post and larger than the diameter of the groove position of the locking post; the groove of the locking post is locked with the hollow hole of the locking hole (403); or The snap-fit ​​mechanism (201) is a curved structure, including a vertical rod and a horizontal rod; one end of the vertical rod is fixedly connected to the bottom surface of the ejector plate (2), and the other end of the vertical rod is connected to the horizontal rod; the snap-fit ​​hole (403) is a hollow hole structure; the inner diameter of the hollow hole is greater than the width of the snap-fit ​​mechanism (201); the snap-fit ​​mechanism (201) passes through the snap-fit ​​hole (403), and the horizontal rod of the snap-fit ​​mechanism (201) acts on the snap plate (4); Preferably, the perforated hole is semi-circular, circular, or square.

4. The ejection-type parachute deployment device according to any one of claims 1-3, characterized in that: One end of the elastic element (3) is connected to the upper surface of the chassis (1); the other end of the elastic element (3) is connected to the lower surface of the catapult plate (2) or acts on the lower surface of the catapult plate (2); Preferably, the elastic element (3) is a sheet or a spring; Preferably, the elastic element (3) is disposed above the through hole (101); Preferably, n elastic elements (3) are provided between the chassis (1) and the catapult plate (2); n is 1-500, preferably 2-300, and more preferably 3-100.

5. The ejection-type parachute deployment device according to any one of claims 1-3, characterized in that: The device also includes a tray (6); the tray (6) is located between the chassis (1) and the ejector plate (2), and the tray (6) is connected to the upper surface of the chassis (1); the tray (6) is provided with a first through hole (602) for the elastic element (3) to pass through and a second through hole (603) for the snap-fit ​​mechanism (201) to pass through. Preferably, the second through hole (603) and the through hole (101) are connected by a hollow tube; Preferably, a recessed groove (601) is provided in the middle of the tray (6), the bottom end of the groove (601) is connected to the middle surface of the chassis (1), and an opening or groove (202) corresponding to the groove (601) is provided in the middle of the ejection plate (2).

6. The ejection-type parachute deployment device according to any one of claims 1-5, characterized in that: A guide wheel (102) is provided on one side of the chassis (1); the pull rope (5) passes through the guide wheel (102) and is connected to the clamping plate (4); and / or The chassis (1), launch plate (2) or tray (6) is equipped with a parachute fixing device; and / or The end of the pull rope (5) is provided with a pull ring or hook; and / or The ejector plate (2) is equipped with a signal generating device; preferably, the signal generating device is one or more of an electrical signal generating device, an optical information generating device, an audio signal generating device, and a vibration signal generating device.

7. A material airdrop system, characterized in that: The material airdrop system includes a cargo carrier (A) (box, bag, net, bag or basket), a stabilizing parachute (B) and an ejector-type parachute deployment device as described in any one of claims 1-6, wherein the stabilizing parachute (B) and the ejector-type parachute deployment device are mounted on the cargo carrier (A) and the stabilizing parachute (B) is connected to the ejector-type parachute deployment device or the cargo carrier (A).

8. The material airdrop system according to claim 7, characterized in that: The cargo carrier (A) is an airdrop container; the airdrop container includes a container body (A01) and a container lid (A02); the container body (A01) has an open-top structure, and the container lid (A02) closes onto the open top of the container body (A01); the container lid (A02) has a cavity structure with an inner cavity, and an ejector-type parachute deployment device and a stabilizing parachute (B) are installed in the inner cavity of the container lid (A02); Preferably, the upper surface of the box cover (A02) is provided with an opening for the ejector plate (2) to pass through; the outer surface of the box cover (A02) is provided with a hole for the pull rope (5) to pass through; Preferably, the opening through which the ejector plate (2) passes is provided with a cover plate; preferably, the cover plate is bonded to the box cover (A02) or connected by an easy-tear line.

9. The material airdrop system according to claim 8, characterized in that: The chassis (1) is connected to the bottom surface of the inner cavity of the cover (A02); and / or The opening through which the ejection plate (2) protrudes is located in the middle of the upper surface of the box cover (A02); and / or The hole through which the pull rope (5) passes is located on one side of the upper surface of the box cover (A02) or on the side of the box cover (A02).

10. The material airdrop system according to any one of claims 7-9, characterized in that: The carrying device (A) is equipped with a signal generating device; preferably, the signal generating device is one or more of an electrical signal generating device, an optical information generating device, an audio signal generating device, and a vibration signal generating device; and / or The bottom wall of the housing (A01) has a single-layer or multi-layer structure; preferably, the bottom of the housing (A01) is provided with a buffer mechanism; and / or The side walls of the enclosure (A01) are of a single-layer or multi-layer structure; preferably, the side walls of the enclosure (A01) are provided with a buffer mechanism. Preferably, the cushioning mechanism is a pad or an airbag; preferably, the cushioning mechanism is made of a soft material.

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