Parachute separating mechanism

Abstract

The invention discloses a parachute separation mechanism, which relates to the technical field of parachute separation, and comprises a first connecting piece, a second connecting piece, a locking piece and an unlocking assembly, the first connecting piece is used for connecting a carrier; the second connecting piece is detachably connected with the first connecting piece and used for being connected with a parachute. The locking piece is movably arranged on the first connecting piece or the second connecting piece, can extend to the joint of the first connecting piece and the second connecting piece, and is used for locking connection; the unlocking assembly is arranged on the first connecting piece and / or the second connecting piece and connected with the locking piece, and after being started, the unlocking assembly is used for driving the locking piece to move so as to achieve unlocking. Based on the technical scheme disclosed by the invention, the false triggering risk can be reduced, the separation failure caused by incomplete breakage of a traditional bolt can be avoided, and the reliability of the separation mechanism is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of parachute separation technology, and more specifically to a parachute separation mechanism. Background Technology

[0002] Parachute separation refers to the process of separating a parachute from a carrier (such as a spacecraft, aircraft, missile, parachutist, drone, or airdropped object) at a predetermined stage through a specific device or mechanism.

[0003] Currently, parachute separation mechanisms often rely on explosive bolts to sever the connection points. However, in practical applications, this method suffers from incomplete bolt breakage, which can easily lead to separation failure and urgently needs improvement. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a parachute separation mechanism to solve the technical problem of parachute separation failure caused by incomplete breakage of the explosive bolt in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This invention provides a parachute separation mechanism, comprising: The first connector is used to connect the carrier; The second connector is detachably connected to the first connector and is used to connect the parachute. A locking element, movably disposed on the first or second connector and extending to the connection point between the first and second connectors, is used to lock the connection; and An unlocking component is disposed on the first connector and / or the second connector and connected to the locking component. Upon activation, it is used to drive the locking component to move in order to unlock.

[0006] In some embodiments, the first connector and the second connector are plugged into each other, and a limiting member is movably provided at the plug-in point to limit the disengagement of the first connector and the second connector; the locking member can be connected to the limiting member, and by limiting the movement of the limiting member, the first connector and the second connector are locked together.

[0007] In some embodiments, the second connector has a pin hole inside, and a plurality of retaining holes communicating with the pin hole are provided on the side wall of the second connector; one end of the first connector is used to be inserted into the pin hole, and a mating groove is provided thereon to mate with the plurality of retaining holes. The limiting component is a steel ball, and multiple steel balls are provided. Each steel ball is embedded in one of the multiple retaining holes and inserted into the mating groove. The locking component is provided on the outside of each steel ball and can abut against each steel ball to prevent each steel ball from exiting through the corresponding retaining hole and disengaging from the mating groove.

[0008] In some embodiments, the locking member is an annular sleeve that is movably sleeved on the outside of the second connector, and its inner wall can abut against each of the steel balls to restrict each of the steel balls from exiting the corresponding retaining hole.

[0009] In some embodiments, the inner wall of the annular sleeve is provided with a protrusion corresponding to each of the retaining holes, and the annular sleeve can abut against each of the steel balls through the protrusion; the second connector is also provided with an elastic limiting structure for limiting the alignment of the protrusion with the plurality of retaining holes.

[0010] In some embodiments, the elastic limiting structure includes: A limiting bevel, located on one side of the protrusion along the direction of movement of the annular sleeve, is used to abut against the protrusion; and An elastic element is located on the other side of the protrusion along the direction of movement of the annular sleeve, and is used to abut against the protrusion.

[0011] In some embodiments, the unlocking component includes: The cylinder is fixedly mounted on the second connecting member, and its interior is provided with a piston chamber that communicates with the outside. A piston rod is telescopically disposed at one end of the cylinder near the annular sleeve through the piston chamber and is fixedly connected to the annular sleeve, for driving the annular sleeve to move. A power structure is located at the end of the cylinder away from the annular sleeve, for pushing the piston rod to extend.

[0012] In some embodiments, the power structure includes: The explosion chamber is located inside the cylinder and is connected to the piston chamber; Solid explosives are filled into the explosion cavity; An electronic detonator, fixedly mounted on the cylinder and connected to the solid explosive, is used to ignite the solid explosive; and A battery is fixedly mounted on the second connector and connected to the electronic detonator to supply power to the electronic detonator.

[0013] In some embodiments, the front end of the cylinder is provided with a plurality of pressure relief holes communicating with the outside. When the piston rod extends to its limit position, the piston chamber communicates with the external space through the plurality of pressure relief holes.

[0014] In some embodiments, the electronic detonator is further provided with a dual-redundant triggering circuit. The electronic detonator is connected to the battery through the dual-redundant triggering circuit, and the electronic detonator is also electrically connected to an external remote control system, so that the dual-redundant triggering circuit only enters the conduction state when both of its circuits simultaneously receive the trigger signal from the external remote control system.

[0015] Compared with existing technologies, the present invention provides a parachute separation mechanism. A first connecting member connects to the carrier, and a second connecting member connects to the parachute. The first and second connecting members are detachably connected and locked by a locking member. Simultaneously, an unlocking component controls the movement of the locking member to achieve unlocking. This method eliminates the need for existing explosive bolt separation structures, allowing the first and second connecting members to use a normally closed mechanical lock. This, combined with the unlocking component, not only reduces the risk of accidental triggering but also avoids separation failure caused by incomplete bolt breakage, significantly improving the reliability of the separation mechanism. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the parachute separation mechanism in one embodiment of the present invention; Figure 2 This is a partial cross-sectional view of a parachute separation mechanism in one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the explosive push rod in one embodiment of the present invention; Figure 4 This is a schematic diagram of a battery and its mounting structure in one embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Fixing pin; 11. First flange; 12. Mating groove; 2. Connecting post; 21. Insertion pin hole; 22. Second flange; 23. Retaining hole; 24. Limiting bevel; 25. Boss; 26. Battery slot; 261. Slot cover; 3. Locking sleeve; 31. Protrusion; 4. Steel ball; 5. Spring; 6. Explosive push rod; 61. Cylinder; 62. Piston chamber; 63. Piston rod; 64. Explosive chamber; 65. Baffle; 651. Vent hole; 66. Solid explosive; 67. Electronic detonator; 68. End cap; 69. Pressure relief hole; 7. Battery. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] To address the aforementioned technical problems, this invention provides a parachute separation mechanism that not only reduces the risk of accidental triggering but also avoids separation failure caused by incomplete bolt breakage, thus greatly improving the reliability of the separation mechanism.

[0020] Please see Figure 1 , Figure 1 This is a schematic diagram of the overall structure of a parachute separation mechanism in one embodiment of the present invention. The parachute separation mechanism can be used to realize the separation of the parachute from the carrier (such as a vehicle, aircraft, missile, parachute, drone or airdropped object, etc.) at a predetermined stage.

[0021] The parachute separation mechanism includes a first connector, a second connector, a locking component, and an unlocking component. The first connector can be used to connect a carrier, the second connector can be used to connect a parachute, the first connector and the second connector are detachably connected, the locking component can lock the connection between the two, and the unlocking component can be used to unlock the locking component so as to unlock and detach the first connector and the second connector.

[0022] Please see Figure 1-2 In this embodiment, the first connector can be a fixing pin 1, and a first flange 11 is fixedly provided at one end of the fixing pin 1. The first flange 11 can be used to connect the carrier. The end of the fixing pin 1 away from the first flange 11 can be used to insert and cooperate with the second connector, and a mating groove 12 is formed inward near its end. The mating groove 12 can be an annular groove with a semi-circular cross section, and the specific size of the mating groove 12 is not specifically limited.

[0023] Correspondingly, the second connector can be a connecting post 2. One end of the connecting post 2 is provided with a pin hole 21 extending axially. The pin hole 21 allows the end of the fixing pin 1 containing the mating groove 12 to be inserted to form a mating fit. The inner diameter of the pin hole 21 can be determined according to the size of the fixing pin 1, and is not specifically limited thereto. A second flange 22 is fixed to the end of the connecting post 2 away from the pin hole 21. The second flange 22 can be used to connect a parachute.

[0024] The connecting post 2 is provided with a plurality of retaining holes 23 corresponding to the mating groove 12 on the fixing pin 1. Each retaining hole 23 can communicate with the internal insertion pin hole 21. The specific number and size of the retaining holes 23 are not limited, but the retaining holes 23 are preferably evenly distributed circumferentially around the axis of the connecting post 2. On this basis, each retaining hole 23 can extend radially along the connecting post 2 and penetrate the side wall of the connecting post 2 to communicate with the internal insertion pin hole 21.

[0025] It should be noted that the specific positions of each retaining hole 23 on the connecting post 2 can be determined according to the position of the mating groove 12 on the fixing pin 1. It is necessary to ensure that at a certain position during the process of the fixing pin 1 being inserted into the insertion pin hole 21, each retaining hole 23 can be simultaneously aligned with the mating groove 12 on the inner fixing pin 1.

[0026] Based on this, such as Figure 2 As shown, in order to connect the fixing pin 1 and the connecting post 2, a limiting component is also provided at the insertion point of the fixing pin 1 and the connecting post 2. The limiting component can help restrict the fixing pin 1 from disengaging from the insertion pin hole 21.

[0027] Specifically, the limiting component can be a steel ball 4. Multiple steel balls 4 are provided, and they are arranged in a one-to-one correspondence with the retaining holes 23 on the connecting column 2. Each steel ball 4 can be embedded in the corresponding retaining hole 23. When the steel ball 4 is fully embedded in the retaining hole 23, the inner side of the steel ball 4 can be embedded in the mating groove 12 on the fixing pin 1.

[0028] At this time, the outer side of the steel ball 4 is embedded in the retaining hole 23, while its inner side is embedded in the mating groove 12; provided that the steel ball 4 does not exit from the retaining hole 23, the steel balls 4 cooperate with each other to achieve a stable connection between the fixing pin 1 and the connecting column 2.

[0029] Understandably, the size of the steel ball 4 should ensure that it can be fully inserted into the corresponding retaining hole 23, and the diameter of the steel ball 4 should not be too small to avoid the steel ball 4 being too loose in the corresponding retaining hole 23. Therefore, the specific size of the steel ball 4 can be determined according to the diameter of the retaining hole 23 on the connecting post 2, so that the steel ball 4 can be inserted into the retaining hole 23 without excessive wobbling.

[0030] Meanwhile, since the inner side of the steel ball 4 can be embedded in the mating groove 12 on the fixing pin 1, the size of the mating groove 12 can also be determined according to the size of the steel ball 4, so as to ensure that the steel ball 4 can be embedded in the mating groove 12 and can remain stable in the mating groove 12.

[0031] Please see Figure 2 To ensure that each steel ball 4 does not arbitrarily exit from the corresponding retaining hole 23, that is, the fixing pin 1 does not arbitrarily detach from the connecting post 2, the locking component can be a locking sleeve 3. The locking sleeve 3 has a hollow cylindrical structure, which can be sleeved on the outside of the connecting post 2, and its inner wall can abut against the location of each retaining hole 23 on the connecting post 2, thereby restricting the steel ball 4 from accidentally exiting from the retaining hole 23.

[0032] Specifically, an annular protrusion 31 can be provided on the inner wall of the locking sleeve 3. The protrusion 31 can correspond to the circumference formed by each retaining hole 23 on the connecting post 2. That is, when the locking sleeve 3 is sleeved on the connecting post 2, by moving the locking sleeve 3 along the axial direction of the connecting post 2, the protrusion 31 can be aligned with each retaining hole 23 on the inner side and abut against the outer wall of the connecting post 2.

[0033] Thus, when each steel ball 4 is fully embedded in each retaining hole 23, the locking sleeve 3 abuts against the outer wall of the area where each retaining hole 23 is located on the connecting post 2 through the protrusion 31, thereby effectively blocking the channel for each steel ball 4 to exit from the corresponding retaining hole 23, so as to ensure that the steel ball 4 can achieve a stable connection between the fixing pin 1 and the connecting post 2.

[0034] Based on this, in order to ensure that the protrusion 31 on the locking sleeve 3 can be easily aligned with each retaining hole 23 on the connecting post 2, an elastic limiting structure can also be provided on the connecting post 2.

[0035] The elastic limiting structure may include a limiting bevel 24, which can be directly formed on the connecting post 2, forming a step in the axial direction of the connecting post 2. Specifically, the limiting bevel 24 can be located on one side of the circumference formed by the retaining holes 23; when the locking sleeve 3 moves along the axial direction of the connecting post 2 toward the position of the retaining hole 23, the protrusion 31 cannot continue to move when it abuts against the limiting bevel 24; at this time, the protrusion 31 is precisely aligned with the inner retaining holes 23.

[0036] Meanwhile, the elastic limiting structure may also include an elastic element, which may be a spring 5. The spring 5 may be sleeved on the end of the connecting post 2 and located in the gap between the locking sleeve 3 and the connecting post 2, and the spring 5 is a compressed spring 5.

[0037] To facilitate the installation of the spring 5, an annular boss 25 is provided at the end of the connecting post 2 near the fixing pin 1; the spring 5 is sleeved on the connecting post 2, and its side near the fixing pin 1 can abut against the boss 25, while its other side can abut against the side of the protrusion 31 away from the limiting bevel 24.

[0038] It is understandable that when the locking sleeve 3 is fitted onto the connecting post 2, the spring 5 and the limiting bevel 24 are located on opposite sides of the protrusion 31 along the direction of movement of the locking sleeve 3; wherein, the spring 5 is preferably located on the side of the protrusion 31 closer to the fixing pin 1, while the limiting bevel 24 is preferably located on the side of the protrusion 31 away from the fixing pin 1.

[0039] At this time, the spring 5 abuts against the protrusion 31, and its elastic restoring force will continuously push the locking sleeve 3 to generate an area that moves toward the side where the limiting bevel 24 is located, and cause the protrusion 31 to abut against the limiting bevel 24, thereby restricting the protrusion 31 to the position of each retaining hole 23, so that the protrusion 31 can always be aligned with each retaining hole 23 on the inner side.

[0040] Please see Figure 2-3 The aforementioned unlocking components are mainly used to release the locking sleeve 3 from the steel ball 4, thereby releasing the connection between the fixing pin 1 and the connecting post 2.

[0041] Specifically, the unlocking component is an explosive push rod 6. Multiple explosive push rods 6 can be set. All multiple explosive push rods 6 are fixed on the connecting column 2 and can be evenly distributed around the connecting column 2 in a circle. In order to improve the separation reliability, the number of explosive push rods 6 is at least 3.

[0042] Taking any one of the explosive push rods 6 as an example, the explosive push rod 6 includes a cylinder 61, which can be arranged axially along the side wall of the connecting column 2 and fixedly connected to the connecting column 2. The cylinder 61 is hollow inside, and an opening is provided at its end near the locking sleeve 3. The inside of the cylinder 61 includes a piston chamber 62, which communicates with the opening, and a piston rod 63 is telescopically arranged in the piston chamber 62. The end of the piston rod 63 can extend through the opening and be fixedly connected to the end of the locking sleeve 3 away from the fixing pin 1.

[0043] Based on this, a power structure is also provided on the cylinder 61. The power structure can push the piston rod 63 to extend. The extension of the piston rod 63 will push the locking sleeve 3 to move towards the fixed pin 1, so that the protrusion 31 no longer restricts the movement of the steel ball 4 in the retaining hole 23.

[0044] Specifically, such as Figure 3 As shown, the power structure includes an explosion chamber 64 disposed inside the cylinder 61. The explosion chamber 64 can be disposed on the side of the piston chamber 62 away from the extended end of the piston rod 63. A baffle 65 can be disposed between the explosion chamber 64 and the piston chamber 62. A vent hole 651 with a reduced diameter relative to the inner diameter of the cylinder 61 can be opened on the baffle 65. The vent hole 651 can connect the piston chamber 62 and the explosion chamber 64.

[0045] The power structure also includes solid explosive 66 filled in the explosion chamber 64 and an electronic detonator 67 disposed at the end of the cylinder 61 away from the piston rod 63. To facilitate the filling of the solid explosive 66, the end of the cylinder 61 away from the piston rod 63 can also be configured as an open structure, and this opening can be closed by a threaded end cap 68; while the electronic detonator 67 can be fixedly disposed on the end cap 68, and its lead can pass through the end cap 68 and extend into the interior of the solid explosive 66, thereby connecting and fixing the explosive.

[0046] Please see Figure 3-4 To facilitate power supply to the electronic detonator 67, the power structure also includes a battery 7 mounted on the connecting post 2; a battery slot 26 can be provided on the end face of the connecting post 2 where the second flange 22 is located, and the battery 7 shell is fixedly mounted in the battery slot 26. A slot cover 261 can be detachably mounted on the battery slot 26, which can not only seal the battery slot 26, but also facilitate quick replacement of the battery 7.

[0047] In this way, the battery 7 can be connected to all the electronic detonators 67 via lead wires and supply power to all the electronic detonators 67, ensuring that the electronic detonators 67 can be activated and detonate the solid explosive 66 when necessary.

[0048] Understandably, when the solid explosive 66 is detonated by the electronic detonator 67, the high-pressure gas generated by the explosion will enter the piston chamber 62 through the vent hole 651 on the baffle 65, and push the piston rod 63 to move axially, causing the piston rod 63 to extend on the cylinder 61. Since the end of the piston rod 63 is fixedly connected to the locking sleeve 3, the piston rod 63 will push the locking sleeve 3 to move away from the cylinder 61.

[0049] During this process, considering the issue of overpressure, multiple pressure relief holes 69 can be provided at the front end of the cylinder 61 (i.e., the end near the locking sleeve 3). These pressure relief holes 69 are preferably distributed in a ring array on the side wall of the cylinder 61. The specific positions of each pressure relief hole 69 on the cylinder 61 can be determined based on the stroke of the piston rod 63 in the piston chamber 62, so as to ensure that when the piston rod 63 extends to its limit position, the piston chamber 62 can connect to the external space through each pressure relief hole 69.

[0050] The limit position of piston rod 63 is the maximum stroke position that piston rod 63 can move under the thrust of high-pressure gas generated by the explosion; when piston rod 63 moves to this limit position, the remaining explosive gas inside piston chamber 62 can be discharged through each pressure relief hole 69, thereby avoiding overpressure inside cylinder 61.

[0051] Based on this, to further improve the safety of the separation structure, a dual-redundant trigger circuit can be provided on the electronic detonator 67. The electronic detonator 67 can be connected to the battery 7 through this dual-redundant trigger circuit. At the same time, the electronic detonator 67 can also be electrically connected to an external remote control system, so that the dual-redundant trigger circuit can only enter the conducting state when both of its circuits simultaneously receive the trigger signal from the external remote control system. After the dual-redundant trigger circuit is turned on, the electronic detonator 67 will be activated and detonate the solid explosive 66.

[0052] It should be noted that the aforementioned dual-redundant trigger circuit has two independent circuit modules. Both modules can output trigger signals simultaneously, or, under specific logic control, the subsequent actuator will only be triggered when both circuits output valid trigger signals. Since its specific structure is prior art and not the focus of this invention, it will not be elaborated upon here.

[0053] By setting a dual-redundant triggering circuit on the electronic detonator 67 and connecting the electronic detonator 67 and the battery 7 through the dual-redundant triggering circuit, the solid explosive 66 cannot be detonated due to a single signal failure or electromagnetic interference, thus preventing the parachute from accidentally separating from the carrier due to static electricity, lightning or software malfunction of the electronic detonator 67.

[0054] To better understand this invention, the following is combined with... Figure 1-4 The technical solutions of the embodiments of the present invention will be described in detail below: In practical applications, the spring 5 can push the locking sleeve 3 through its elastic restoring force, causing the protrusion 31 to press the steel ball 4 through the retaining hole 23 into the mating groove 12 on the fixing pin 1, forming a mechanical self-locking mechanism. At this time, the steel ball 4 is simultaneously limited by the mating groove 12 and the protrusion 31, ensuring that the fixing pin 1 is firmly connected to the connecting post 2.

[0055] Upon receiving the separation command, battery 7 supplies power to electronic detonator 67, detonating solid explosive 66. The high-pressure gas generated by the explosion pushes piston rod 63 outward, and piston rod 63 pushes locking sleeve 3 to overcome the elastic force of spring 5, causing protrusion 31 to disengage from steel ball 4.

[0056] After losing the constraint of the protrusion 31, the steel ball 4 will exit from the corresponding retaining hole 23 under the action of the carrier's gravity and / or inertial force, so that the fixing pin 1 can be disengaged from the insertion pin hole 21, thus completing the separation of the parachute from the carrier.

[0057] In the above manner, the fixing pin 1 is inserted into the insertion pin hole 21 of the connecting column 2, and the steel ball 4 is automatically locked into the mating groove 12 under the action of the spring 5, forming an initial lock; when bearing load, the locking sleeve 3 maintains the continuous pressure of the protrusion 31 on the steel ball 4 under the action of the spring 5, ensuring the reliability of the connection; when separating, the electronic detonator 67 detonates the solid explosive 66 after receiving the electrical signal, and the piston rod 63 pushes the locking sleeve 3 to move axially, releasing the constraint on the steel ball 4.

[0058] After the steel ball 4 is released, the fixing pin 1 is disengaged from the connecting column 2 under the action of the inertial force generated by the movement of the carrier, achieving rapid separation. After the parachute is recovered, the electronic detonator 67 can be replaced and the solid explosive 66 can be refilled for reuse. The fixing pin 1 can be replenished in the future.

[0059] In this way, the existing explosive bolt separation structure can be eliminated, and the fixing pin 1 and the connecting column 2 can be mechanically locked in a normally closed manner. With the help of the explosive push rod 6, the unlocking can be achieved. This not only reduces the risk of accidental triggering, but also avoids separation failure caused by incomplete breakage of traditional bolts, and greatly improves the reliability of the separation mechanism.

[0060] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0061] It should be noted that in this 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 limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A parachute separation mechanism, characterized in that, include: The first connector is used to connect the carrier; The second connector is detachably connected to the first connector and is used to connect the parachute. A locking element is movably disposed on the first connector or the second connector and can extend to the connection between the first connector and the second connector for locking the connection. as well as An unlocking component is disposed on the first connector and / or the second connector and connected to the locking component. Upon activation, it is used to drive the locking component to move in order to unlock.

2. The parachute separation mechanism according to claim 1, characterized in that, The first connector and the second connector are plugged into each other, and a limiting member is movably provided at the plug-in point to prevent the first connector and the second connector from disengaging; the locking member can be connected to the limiting member, and by restricting the movement of the limiting member, the first connector and the second connector are locked together.

3. The parachute separation mechanism according to claim 2, characterized in that, The second connector has an insertion pin hole inside, and a plurality of retaining holes communicating with the insertion pin hole are provided on the side wall of the second connector; one end of the first connector is used to be inserted into the insertion pin hole, and a mating groove is provided thereon to mate with the plurality of retaining holes. The limiting component is a steel ball, and multiple steel balls are provided. Each steel ball is embedded in one of the multiple retaining holes and inserted into the mating groove. The locking component is provided on the outside of each steel ball and can abut against each steel ball to prevent each steel ball from exiting through the corresponding retaining hole and disengaging from the mating groove.

4. The parachute separation mechanism according to claim 3, characterized in that, The locking element is an annular sleeve, which is movably sleeved on the outside of the second connector, and its inner wall can abut against each of the steel balls to prevent each of the steel balls from exiting the corresponding retaining hole.

5. The parachute separation mechanism according to claim 4, characterized in that, The inner wall of the annular sleeve is provided with protrusions corresponding to each of the retaining holes, and the annular sleeve can abut against each of the steel balls through the protrusions; the second connector is also provided with an elastic limiting structure for limiting the alignment of the protrusions with the plurality of retaining holes.

6. The parachute separation mechanism according to claim 5, characterized in that, The elastic limiting structure includes: A limiting bevel, located on one side of the protrusion along the direction of movement of the annular sleeve, is used to abut against the protrusion; and An elastic element is located on the other side of the protrusion along the direction of movement of the annular sleeve, and is used to abut against the protrusion.

7. The parachute separation mechanism according to claim 4, characterized in that, The unlocking component includes: The cylinder is fixedly mounted on the second connecting member, and its interior is provided with a piston chamber that communicates with the outside. A piston rod is telescopically disposed at one end of the cylinder near the annular sleeve through the piston chamber and is fixedly connected to the annular sleeve, for driving the annular sleeve to move. A power structure is located at the end of the cylinder away from the annular sleeve, for pushing the piston rod to extend.

8. The parachute separation mechanism according to claim 7, characterized in that, The power structure includes: The explosion chamber is located inside the cylinder and is connected to the piston chamber; Solid explosives are filled into the explosion cavity; An electronic detonator, fixedly mounted on the cylinder and connected to the solid explosive, is used to ignite the solid explosive; and A battery is fixedly mounted on the second connector and connected to the electronic detonator to supply power to the electronic detonator.

9. The parachute separation mechanism according to claim 8, characterized in that, The cylinder has multiple pressure relief holes at its front end that connect to the outside. When the piston rod extends to its limit position, the piston chamber connects to the external space through the multiple pressure relief holes.

10. The parachute separation mechanism according to claim 8, characterized in that, The electronic detonator is also equipped with a dual-redundant trigger circuit. The electronic detonator is connected to the battery through the dual-redundant trigger circuit, and the electronic detonator is also electrically connected to an external remote control system, so that the dual-redundant trigger circuit only enters the conduction state when both of its circuits simultaneously receive the trigger signal from the external remote control system.

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