Air-drop device capable of achieving multi-stage speed reduction

Abstract

The utility model discloses an air-drop device, which comprises an air-drop device capable of realizing multi-stage speed reduction, belongs to the technical field of low-altitude economic logistics, and comprises a parachute body, a plurality of parachute cords distributed on the peripheral side of the parachute body, and an air-drop box connected to the end parts of the parachute cords, the parachute body comprises a main parachute body and a guide parachute arranged at the top of the main parachute body, the main parachute body and the guide parachute are connected through a guide rope, and the main parachute body is connected with the air-drop box through the parachute rope; a containing space used for containing the parachute body is arranged in the air-drop box, and an adjusting device used for adjusting the releasing length of the parachute cord is arranged in the containing space. The adjusting device adjusts the opening area of the parachute surface of the main parachute body by changing the releasing length of the parachute cords, so that resistance borne in the whole air-drop descending process is different, multi-stage control is achieved, and the air-drop device is simple, not complex and capable of adapting to various scenes.

Description

Technical Field

[0001] This utility model relates to the field of low-altitude economy, and more specifically, to an airdrop device with multi-stage deceleration capability. Background Technology

[0002] "Low-altitude economy" refers to a comprehensive economic form that mainly uses civilian manned and unmanned aircraft, and uses low-altitude flight activities in multiple scenarios such as carrying people, cargo and other operations as the driving force to promote the integrated development of related fields. It has the characteristics of wide radiation, long industrial chain, strong growth and driving force, and has broad prospects in driving effective investment, creating consumer demand and enhancing innovation capabilities.

[0003] With the booming development of the industry, its application areas are constantly expanding, and express delivery and logistics have become one of the hot spots for development, gradually emerging both domestically and internationally in recent years. Relatively speaking, delivery costs are lower than manual labor, and it has more advantages in transporting goods in special areas and remote areas with inconvenient transportation.

[0004] Currently, the development of supporting equipment specifically for express delivery is relatively lagging. The methods of delivering items are still quite simple and rudimentary. Typically, goods are loaded into a storage box and then landed at the destination for delivery, or the item is dropped when it is one or two meters above the ground, or it is directly hoisted down with a rope. This process involves landing or flying to the destination each time, posing a risk of injury to people on the ground, potentially damaging other items, or even allowing items to be stolen. Furthermore, the need for takeoff and landing for each delivery increases delivery costs.

[0005] Using parachute airdrops can effectively solve the above problems. For example, it has been reported that Amazon has publicly announced a drone delivery solution that uses drones to deliver packages to customers' homes without requiring the drones to land. Instead, packages are dropped from a high altitude, and a parachute can be deployed from the package during its descent for a safe landing. However, the parachute in this case uses a traditional structure and shape, which can lead to problems such as the parachute failing to open at low altitudes or the parachute lines becoming tangled. Moreover, current customer and cargo needs are complex, and the deployment scenarios are also diverse. Traditional airdrops with standardized parachutes cannot meet the diverse needs of customers. When delivering small items, a parachute that is too large will increase delivery time, increase the landing area, and increase costs. When delivering large or heavy items, a parachute that is too small will cause the airdrop to descend too quickly, damaging the goods. The same problems exist regardless of the delivery altitude.

[0006] In conclusion, with the rapid development of the low-altitude economy, there is an urgent need to develop specialized delivery devices that are adaptable to various scenarios, improve safety, and reduce costs. Therefore, developing an easy-to-manufacture, low-cost, and easy-to-operate airdrop device to adapt to complex low-altitude environments and changing delivery scenarios is beneficial to promoting the development of the low-altitude economy. Utility Model Content

[0007] In view of this, the present invention provides an airdrop device with multi-stage deceleration to address the problem of diversified market demands.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An airdrop device with multi-stage deceleration includes a parachute body, a plurality of parachute lines distributed around the periphery of the parachute body, and an airdrop box connected to the ends of the parachute lines.

[0010] The umbrella body includes a main umbrella body and a guide umbrella disposed on the top of the main umbrella body. The main umbrella body and the guide umbrella are connected by guide ropes. The main umbrella body is connected to the airdrop box by the umbrella ropes.

[0011] The airdrop box is equipped with a partition that divides the interior into a storage space for loading goods and a storage space for storing the umbrella. The storage space is equipped with an adjustment device for adjusting the release length of the umbrella lines. The adjustment device adjusts the opening area of ​​the main umbrella canopy by changing the release length of the umbrella lines.

[0012] Furthermore, the adjusting device includes a movable pin disposed on the partition, a limiting block, and limiting rings disposed on the paracords. Multiple limiting rings are disposed along the length direction of each paracord. Multiple limiting rings with the same serial number on each paracord are limiting rings of the same level. The limiting rings are all sleeved on the movable pin. The limiting block is provided with limiting holes. The movable pin moves between the limiting holes along the setting direction of the limiting block.

[0013] Furthermore, the paracords include a first paracord connected to the bottom of the main umbrella canopy and a second paracord connected to the center of the canopy; the connection points of the first paracords with the main umbrella canopy are located on a first horizontal plane, and the connection points of the second paracords with the main umbrella canopy are located on a second horizontal plane.

[0014] Furthermore, the multiple limiting rings on each of the paracords are spaced apart and evenly arranged, and multiple limiting blocks are evenly distributed along the movement trajectory of the movable pin. The movable pin between two adjacent limiting blocks is used to fit the limiting rings of the same level.

[0015] Furthermore, the multiple limiting rings at the same level are at the same distance from the first horizontal plane.

[0016] Furthermore, among the plurality of limiting rings at the same level, the distance between the limiting ring on the first paracord and the first horizontal plane is less than the distance between the limiting ring on the second paracord and the first horizontal plane.

[0017] Furthermore, the partition is provided with a drive source for driving the movable pin to move.

[0018] Furthermore, the partition is also provided with a redirection device, and one end of each of the paracords passes through the redirection device and is connected to the adjustment device.

[0019] Furthermore, the storage space is also equipped with a sensor for detecting the stress on the paracord.

[0020] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0021] 1. Multi-level limit rings enable the device to achieve multi-stage deceleration. Limit rings of the same level are fitted between two limit blocks to collect and organize the parachute ropes, so that the parachute ropes will not tangle together when released.

[0022] 2. The redirection device can restrain and organize the parachute lines. The tension of the parachute lines acting on the device can ensure that the entire airdrop device descends in the correct direction.

[0023] 3. By setting the tension sensor, a signal is sent after the threshold is reached or exceeded for 2-3 seconds. During the descent, the force of the parachute lines acting on the redirection device is monitored in real time to avoid the impact force of the parachute lines exceeding the set threshold and accidentally triggering the device. The descent speed is quickly adjusted to achieve a relatively balanced descent speed for a smooth landing. It can cope with complex landing environments and is suitable for a wide range of scenarios. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a top view of the storage space structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the enlarged storage space structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the main umbrella structure when the limiting ring of this utility model is not released;

[0028] Figure 4 This is a schematic diagram of the main umbrella structure when some of the limiting rings are released in one embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the main umbrella structure when some of the limiting rings are released in another embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Guide umbrella, 2-Main umbrella body, 3-Parasol lines, 4-Drop box, 5-Storage space, 6-Storage space, 7-Directional device, 8-Tension sensor, 9-Limiting block, 10-Drive source, 11-Modible pin, 12-Limiting ring, 13-Baffle, 211-First horizontal plane, 212-Second horizontal plane, 311-First parasol line, 312-Second parasol line. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, in the following description, specific details such as particular system structures and technologies are set forth for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art should understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention / utility model with unnecessary details.

[0033] This utility model provides a multi-stage deceleration airdrop device, as per the appendix to the instruction manual. Figures 1 to 5 It can be seen that,

[0034] Example 1

[0035] An airdrop device with multi-stage deceleration includes a parachute body, a plurality of parachute lines 3 distributed around the periphery of the parachute body, and an airdrop box 4 connected to the ends of the parachute lines 3.

[0036] In this embodiment, the umbrella body includes a main umbrella body 2 and a guide umbrella 1 set on top of the main umbrella body 2. The main umbrella body 2 and the guide umbrella 1 are connected by a guide rope. The main umbrella body 2 is connected to the airdrop box 4 by a parachute rope 3. The guide umbrella can open quickly in the early stage of airdrop, use air resistance to stabilize the umbrella body attitude, create favorable conditions for the smooth opening of the main umbrella body, improve the success rate and stability of opening the umbrella, and reduce the risk of airdrop.

[0037] In this embodiment, the airdrop container 4 is equipped with a partition 13, which divides the interior of the airdrop container into a storage space 6 for loading goods and a storage space 5 for storing the umbrella. The storage space 5 is equipped with an adjustment device for adjusting the release length of the parachute lines 3. This adjustment device adjusts the opening area of ​​the main umbrella 2 by changing the release length of the parachute lines 3. The partition 13 achieves spatial separation, ensuring that the storage of goods and the storage of the umbrella do not interfere with each other, thus guaranteeing the safety of the goods. The adjustment device can adjust the opening area of ​​the main umbrella according to factors such as the airdrop environment and the weight of the goods, thereby controlling the descent speed, adapting to different airdrop needs, and improving the accuracy and safety of the airdrop.

[0038] In this embodiment, the adjustment device includes a movable pin 11, a limiting block 9, and limiting rings 12 on the parachute lines 3, all mounted on a partition plate. Multiple limiting rings 12 are provided along the length of each parachute line 3. Multiple limiting rings with the same serial number on each parachute line 3 are at the same level of limiting rings 12, and each limiting ring 12 is fitted onto the movable pin 11. The limiting block 9 has limiting holes, and the movable pin 11 moves between the limiting holes along the direction of the limiting block 9. By moving the movable pin 11 between different limiting holes 9, the level of the fitted limiting rings 12 is changed, achieving multi-level adjustment of the release length of the parachute lines 3, thereby achieving multi-level deceleration to meet complex airdrop conditions.

[0039] In this embodiment, the parachute lines 3 include first parachute lines 311 connected to the bottom of the canopy of the main umbrella body 2, and second parachute lines 312 connected to the center of the canopy. The connection points of the multiple first parachute lines 311 to the canopy of the main umbrella body 2 are located on a first horizontal plane 211, and the connection points of the multiple second parachute lines 312 to the canopy of the main umbrella body 2 are located on a second horizontal plane 212. The parachute lines at different positions allow the main umbrella body to maintain a more uniform tension distribution when under stress, maintaining a stable opening and descent posture, and ensuring a smooth descent of the airdrop box.

[0040] In this embodiment, the multiple limiting rings 12 on each parachute rope 3 are spaced apart and evenly arranged. Multiple limiting blocks 9 are evenly distributed along the movement trajectory of the movable pins 11. The movable pins 11 between two adjacent limiting blocks 9 are used to fit the limiting rings 12 of the same level. Each parachute rope 3 has the same number of upper limiting rings 12, and the number of limiting blocks 9 is one more than the number of upper limiting rings 12 on each parachute rope 3. There is no limitation to setting only a certain number of components; the required number can be designed according to actual needs. Even distribution facilitates precise control of the release length of the parachute rope 3, achieving a stable multi-stage deceleration effect.

[0041] In this embodiment, as Figure 4 As shown, multiple level-limiting rings 12 are at the same distance from the first horizontal plane 211. This ensures that the main parachute 2 maintains the correct opening posture during the release of the parachute lines 3. It also ensures that the release length of each parachute line 3 is consistent, preventing the main parachute 2 from tilting or flipping due to differences in the release length of the parachute lines 3, thus ensuring airdrop safety.

[0042] In this embodiment, the partition 13 is provided with a drive source 10 for driving the movable pin 11 to move. The drive source 10 is a servo motor or winch with a power device, which can pull the movable pin 11 to move.

[0043] In this embodiment, the partition 13 is also equipped with a redirection device 7, and one end of each of the multiple parachute lines 3 passes through the redirection device 7 and is connected to the adjustment device. The redirection device 7 constrains the parachute lines 3, so that part of the tension on the parachute lines 3 acts on the redirection device 7, adjusting the correct descent posture of the airdrop box 4 during descent. By changing the direction of the tension of the parachute lines 3, the forces on the airdrop box 4 during descent are balanced, preventing unstable situations such as swaying and rotation, and ensuring that the airdrop box 4 descends vertically and smoothly.

[0044] In this embodiment, the storage space 5 is also equipped with a sensor 8 for detecting the force on the paracord 3. The sensor 8 is mounted on the redirection device 7, allowing the change in the magnitude of the force on the paracord 3 to be determined by detecting the force exerted by the paracord on the redirection device. This makes the detection device simpler and more effective.

[0045] This utility model provides an airdrop device with multi-stage deceleration. The specific operation process during use is as follows:

[0046] In this embodiment, during the descent of the airdrop device, the guide umbrella 1 can open without obstruction. Under the traction of the guide umbrella 1, the main umbrella body 2 opens. At this time, the opening area and angle of the main umbrella body 2 are relatively small. The change in the magnitude of the force exerted by the parachute rope 3 on the redirection device 7 can indirectly represent the change in the relative tension between the airdrop box 4 and the main umbrella body 2 on the parachute rope 3 during the descent. The redirection device 7 has a restraining effect on the parachute rope 3, so that the airdrop device as a whole can maintain the correct descent direction.

[0047] In this embodiment, the descent speed gradually increases, the resistance on the main umbrella body 2 increases, and the tension on the parachute lines 3 increases. The tension sensor 7 monitors the force exerted by the parachute lines 3 on the redirection device 7 in real time. When the first threshold is reached and remains at the threshold for 2-3 seconds, a signal is sent. When the drive source 10 receives the signal, it controls the movable pin 11 to move. Each movement distance is the length between the two limit blocks 9, releasing multiple same-level limit rings 12 sleeved on the movable pin 11 between the two limit blocks 9. Under the tension of the main umbrella body 2, this part of the parachute lines 3 is pulled out of the storage space 5 by the redirection device 7. The extension length of the parachute lines 3 increases, the opening area of ​​the main umbrella body 2 increases, and the resistance increases, causing the entire device to decelerate. When the second threshold is reached, the above process is repeated.

[0048] In this embodiment, when the upward resistance of the open area of ​​the main umbrella body 2 and the overall weight of the airdrop device are relatively balanced, the operation stops when the pulling force no longer reaches the set threshold or when all the parachute ropes 3 on the movable pin 11 are released. The threshold is less than the weight of the airdrop device when it descends. When all the parachute ropes 3 on the movable pin 11 are released, the parachute ropes 3 pass directly vertically through the opening of the parachute rope redirection device 7 and no longer exert force on the parachute rope redirection device 7.

[0049] Example 2

[0050] In this embodiment, the distance between the limiting ring on the first paracord 311 and the first horizontal plane 211 is less than the distance between the limiting ring 12 on the second paracord 312 and the first horizontal plane 211, while other aspects are the same as in Embodiment 1. The stretching distance of the paracords at the edge of the main umbrella body 2 is longer than that of the middle paracords, resulting in a larger curvature of the main umbrella body 2, a stronger contraction effect, and a larger opening area when released, thus achieving a greater resistance effect.

[0051] It should be noted that in this patent application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A multi-stage deceleration airdrop device, characterized in that: Includes an umbrella body and multiple parachute lines (3) distributed around the umbrella body, and an airdrop box (4) connected to the ends of the parachute lines; The umbrella body includes a main umbrella body (2) and a guide umbrella (1) set on the top of the main umbrella body. The main umbrella body (2) and the guide umbrella (1) are connected by a guide rope. The main umbrella body (2) is connected to the airdrop box (4) by the umbrella rope (3). The airdrop box (4) is provided with a partition (13) inside, which divides the airdrop box (4) into a storage space (6) for loading goods and a storage space (5) for storing the umbrella body. The storage space (5) is provided with an adjustment device for adjusting the release length of the umbrella rope (3). The adjustment device adjusts the opening area of ​​the canopy of the main umbrella body (2) by changing the release length of the umbrella rope (3).

2. The airdrop device with multi-stage deceleration capability according to claim 1, characterized in that: The adjustment device includes a movable pin (11) on the partition, a limiting block (9) and a limiting ring (12) on the paracord (3). Multiple limiting rings (12) are provided along the length of each paracord (3). Multiple limiting rings (12) with the same serial number are provided on each paracord (3) and are at the same level. The limiting rings (12) are all sleeved on the movable pin (11). The limiting block (9) is provided with limiting holes. The movable pin (11) moves between the limiting holes along the setting direction of the limiting block (9).

3. The airdrop device with multi-stage deceleration capability according to claim 2, characterized in that: The paracord (3) includes a first paracord (311) connected to the bottom of the canopy of the main umbrella body (2) and a second paracord (312) connected to the center of the canopy. Multiple first umbrella cords (311) are connected to the canopy of the main umbrella body (2) at a first horizontal plane (211), and multiple second umbrella cords (312) are connected to the canopy of the main umbrella body (2) at a second horizontal plane (212).

4. The airdrop device with multi-stage deceleration capability according to claim 3, characterized in that: The multiple limiting rings (12) on each of the paracords (3) are spaced apart and evenly arranged. Multiple limiting blocks (9) are evenly distributed along the movement trajectory of the movable pin (11). The movable pin (11) between two adjacent limiting blocks (9) is used to fit the limiting rings (12) of the same level.

5. The airdrop device with multi-stage deceleration capability according to claim 4, characterized in that: The multiple level limiting rings (12) are at the same distance from the first horizontal plane (211).

6. The airdrop device with multi-stage deceleration capability according to claim 4, characterized in that: The distance between the limiting ring (12) on the first paracord (311) and the first horizontal plane (211) is less than the distance between the limiting ring (12) on the second paracord (312) and the first horizontal plane (211).

7. The airdrop device with multi-stage deceleration according to claim 2, characterized in that: The partition (13) is provided with a drive source (10) for driving the movable pin (11) to move.

8. The airdrop device with multi-stage deceleration according to claim 1, characterized in that: The partition (13) is also provided with a redirection device (7), and one end of each of the multiple paracords (3) passes through the redirection device (7) and is connected to the adjustment device.

9. The airdrop device with multi-stage deceleration capability according to claim 1, characterized in that: The storage space (5) is also equipped with a sensor (8) for detecting the stress on the paracord (3).

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