A detachable emergency descent device

Abstract

The present invention discloses a detachable descent device, which can not only achieve the descent effect and stability during the airdrop landing process, but also achieve the landing buffering effect, improve the stability and wind resistance performance after landing, and can fix the orientation of the target object after landing. The detachable descent device mainly includes: a central frame, a buffer airbag, a support rope, a first arm joint, a first arm torsion spring, a first arm joint pin, a first arm connecting rod, a second arm joint, a third arm joint, a second arm torsion spring, a second arm joint pin, a second arm connecting rod, a parachute buckle, a parachute cord, a parachute canopy, and an elastic rod. The present invention can overcome the stability of the object during the airdrop process, improve the buffering performance during landing, fix the orientation of the airdropped object after landing, and improve the stability and wind resistance performance after landing.

Description

Technical Field

[0001] The invention relates to a descent control device, in particular to a detachable descent control device. Background Art

[0002] With the widespread use of low-altitude airdrops by drones, the stability of airdropped objects during the airdrop process, their cushioning performance during landing, and their stability and wind resistance after landing are becoming increasingly important. Summary of the invention

[0003] The object of the present invention is to provide a detachable descent control device.

[0004] The technical solution for achieving the purpose of the present invention is: a detachable slow-descent device, mainly including a central component, an arm assembly and a parachute assembly; when working, the parachute assembly realizes slow-descent and stabilization during the airdrop landing process; the arm assemblies twist and bend with each other after landing, thereby realizing a buffering effect; during the airdrop landing process and landing buffering, the central component realizes fixing and buffering effects; N arm assemblies are evenly distributed around the circumference, thereby improving the stability during the airdrop landing process and after landing, and can fix the direction of the target object after landing.

[0005] The central component is composed of a central frame, a cushioning airbag, and a supporting rope. The supporting rope is fixed to the bottom of the central frame. The cushioning airbag is placed on the supporting rope. The target object is placed on the cushioning airbag and is bound to the central frame through a fixing ring.

[0006] The support arm assembly is composed of the first joint of the support arm, the first torsion spring of the support arm, the first joint pin of the support arm, the first connecting rod of the support arm, the second joint of the support arm, the third joint of the support arm, the second torsion spring of the support arm, the second joint pin of the support arm, and the second connecting rod of the support arm. The two ends of the first connecting rod of the support arm are respectively fixedly connected to the first joint of the support arm and the second joint of the support arm, and one end of the second connecting rod of the support arm is fixedly connected to the third joint of the support arm.

[0007] The first joint of the support arm is hinged to the central frame through the first joint pin of the support arm, the first torsion spring of the support arm is sleeved on the first joint pin of the support arm, the central frame is provided with N central frame torsion spring fixing holes evenly distributed on the circumference, one end of the first torsion spring of the support arm is connected to the central frame through the torsion spring fixing hole of the central frame, the first joint of the support arm is provided with a first joint torsion spring fixing hole of the support arm, the other end of the first torsion spring of the support arm is connected to the first joint of the support arm through the first joint torsion spring fixing hole of the support arm; the second joint of the support arm and the third joint of the support arm are hinged to each other through the second joint pin of the support arm, the second torsion spring of the support arm is sleeved on the second joint pin of the support arm, the second joint of the support arm is provided with a second joint torsion spring fixing hole of the support arm, one end of the second torsion spring of the support arm is connected to the second joint of the support arm through the second joint torsion spring fixing hole of the support arm, the third joint of the support arm is provided with a third joint torsion spring fixing hole of the support arm, the other end of the second torsion spring of the support arm is connected to the third joint of the support arm through the third joint torsion spring fixing hole of the support arm.

[0008] The parachute assembly is composed of a parachute buckle, parachute ropes, a parachute canopy, and elastic rods. Two elastic rods form a cross shape, and their four ends are fixedly connected to the edge of the parachute canopy. One end of the four parachute ropes is fixedly connected to the parachute canopy, and the other end is fixedly connected to the parachute buckle.

[0009] During the air-drop landing process, the second joint of the support arm is hooked to the parachute buckle, so that the support arm assembly is hooked under the parachute assembly. When landing, and when the second joint of the support arm twists with the third joint of the support arm, the parachute buckle can slide off smoothly, realizing the separation of the parachute assembly from the support arm assembly.

[0010] Compared with the prior art, the significant advantages of the present invention are as follows: it can not only achieve the slow-down effect and stability during the air-drop landing process, but also achieve the landing buffer effect, improve the stability and wind resistance performance after landing, and can fix the orientation of the target after landing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0012] Figure 2 It is a schematic diagram of the structure when the present invention carries a target and unfolds in the air.

[0013] Figure 3 It is a schematic diagram of the structure of the central component part when the present invention carries a target.

[0014] Figure 4 It is a schematic diagram of the structure of the support arm assembly and the parachute assembly of the present invention.

[0015] Figure 5 It is a schematic diagram of the articulated structure of the central frame and the support arm assembly of the present invention.

[0016] Figure 6 It is a schematic diagram of the structure of the first joint 4 of the support arm of the present invention.

[0017] Figure 7 It is a schematic diagram of the articulated structure of the second joint and the third joint of the support arm of the present invention.

[0018] Figure 8 It is a schematic diagram of the structure when the support arm assembly is hooked to the parachute assembly during the air deployment of the present invention.

[0019] Figure 9 It is a schematic diagram of the compression buffer structure when the present invention carries a target and lands.

[0020] Figure 10 It is a schematic diagram of the structure when the parachute assembly separates from the support arm assembly when the present invention lands. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figures 1 to 8 As shown, wherein: 1. central frame, 1-1. torsion spring fixing hole of central frame, 2. cushioning airbag, 3. support rope 3, 4. first joint of support arm, 4-1. torsion spring fixing hole of first joint of support arm, 5. first torsion spring of support arm, 6. first joint pin of support arm, 7. first connecting rod of support arm, 8. second joint of support arm, 8-1. torsion spring fixing hole of second joint of support arm, 9. third joint of support arm, 9-1. torsion spring fixing hole of third joint of support arm, 10. second torsion spring of support arm, 11. second joint pin of support arm, 12. second connecting rod of support arm, 13. parachute buckle, 14. parachute rope, 15. parachute canopy, 16. elastic rod, 17. target object, 18. fixing ring.

[0023] A specific implementation of a detachable descent control device of the present invention mainly comprises: a central component, an arm assembly, and a parachute assembly.

[0024] When working, the parachute assembly plays a role in slowing down the descent and stabilizing the landing process of the airdrop; the arm assemblies twist and bend against each other after landing, thereby achieving a cushioning effect; during landing cushioning, the cushioning airbag and support rope of the central component also play a cushioning role; the 6 arm assemblies are evenly distributed, which improves the stability of the airdrop landing process and after landing, and can fix the direction of the target after landing.

[0025] The central component is composed of a central frame 1, a cushioning airbag 2, and a supporting rope 3. The supporting rope 3 is fixed to the bottom of the central frame 1. The cushioning airbag 2 is placed on the supporting rope 3. The target object 17 is placed on the cushioning airbag 2 and is bound to the central frame 1 through a fixing ring 18. When cushioning the landing, the cushioning airbag 2 realizes a cushioning effect, and the supporting rope 3 can also play a certain cushioning role.

[0026] The support arm assembly is composed of a first support arm joint 4, a first support arm torsion spring 5, a first support arm joint pin 6, a first support arm connecting rod 7, a second support arm joint 8, a third support arm joint 9, a second support arm torsion spring 10, a second support arm joint pin 11, and a second support arm connecting rod 12.

[0027] The two ends of the first connecting rod 7 of the support arm are fixedly connected to the first joint 4 of the support arm and the second joint 8 of the support arm respectively, and one end of the second connecting rod 12 of the support arm is fixedly connected to the third joint 9 of the support arm. When falling to the ground for buffering, the first connecting rod 7 of the support arm and the second connecting rod 12 of the support arm are bent to achieve a buffering effect.

[0028] The first joint 4 of the support arm is hinged to the central frame 1 through the first support arm joint pin 6. The first torsion spring 5 of the support arm is sleeved on the first support arm joint pin 6. The central frame 1 is provided with 6 central frame torsion spring fixing holes 1-1 evenly distributed in a circle. One end of the first torsion spring 5 of the support arm is connected to the central frame 1 through the central frame torsion spring fixing hole 1-1. The first joint 4 of the support arm is provided with a first joint torsion spring fixing hole 4-1 of the support arm. The other end of the first torsion spring 5 of the support arm is connected to the first joint 4 of the support arm through the first joint torsion spring fixing hole 4-1 of the support arm. When landing and buffering, the central frame 1 and the first joint 4 of the support arm twist relative to each other, causing the first torsion spring 5 of the support arm to twist to achieve the buffering effect. The 6 support arm assemblies are evenly distributed in a circle, improving the stability after landing and being able to fix the orientation of the target 17 after landing.

[0029] The second joint 8 of the support arm and the third joint 9 of the support arm are hinged to each other through the second support arm joint pin 11. The second torsion spring 10 of the support arm is sleeved on the second support arm joint pin 11. The second joint 8 of the support arm is provided with a second joint torsion spring fixing hole 8-1 of the support arm. One end of the second torsion spring 10 of the support arm is connected to the second joint 8 of the support arm through the second joint torsion spring fixing hole 8-1 of the support arm. The third joint 9 of the support arm is provided with a third joint torsion spring fixing hole 9-1 of the support arm. The other end of the second torsion spring 10 of the support arm is connected to the third joint 9 of the support arm through the third joint torsion spring fixing hole 9-1 of the support arm. When landing and buffering, the second joint 8 of the support arm and the third joint 9 of the support arm twist relative to each other, causing the second torsion spring 10 of the support arm to twist to achieve the buffering effect.

[0030] The parachute assembly is composed of a parachute buckle 13, parachute cords 14, a parachute canopy 15, and elastic rods 16. The two elastic rods 16 are in a cross shape, and the 4 ends are fixedly connected to the edge of the parachute canopy 15, realizing the forced acceleration and deployment of the parachute canopy 15 in the air. One end of the 4 parachute cords 14 is fixedly connected to the parachute canopy 15, and the other end is fixedly connected to the parachute buckle 13.

[0031] During the airdrop landing process, the second joint 8 of the support arm is hooked on the parachute buckle 13, so that the support arm assembly is hooked under the parachute assembly, realizing the slow descent effect during the airdrop landing process.

[0032] When the second joint 8 of the support arm lands and buffers, due to the relative torsion with the third joint 9 of the support arm, the parachute buckle 13 can slide off smoothly, so that the parachute assembly is separated from the support arm assembly, so that the target 17 will not be affected by the wind because of the parachute assembly after landing, improving the wind resistance performance.

[0033] Preferably, the 6 support arm assemblies are evenly distributed in a circle, and the 6 parachute assemblies are evenly distributed in a circle, improving the stability during the airdrop landing process and after landing, and being able to fix the orientation of the target after landing.

[0034] Preferably, the elastic rod 16 can be replaced by any recoverable elastic rod member.

[0035] The above are only the preferred embodiments of the present invention and do not limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A detachable descent device, characterized in that: It comprises a central component, an arm assembly and a parachute assembly; N parachute assemblies are evenly distributed on a circumference, and the parachute assembly realizes a slow descent and a stabilizing effect during an airdrop landing process; the N arm assemblies are evenly distributed, one end of each arm is hinged on the central component, one end is hung under the parachute assembly, and the third end is used for landing buffering, and the arm assembly is composed of a first arm joint (4), a first arm torsion spring (5), a first arm joint pin (6), a first arm connecting rod (7), a second arm joint (8), a third arm joint (9), a second arm torsion spring (10), a second arm joint pin (11), and a second arm connecting rod (12); The two ends of the first connecting rod (7) of the support arm are respectively fixedly connected to the first joint (4) of the support arm and the second joint (8) of the support arm, and one end of the second connecting rod (12) of the support arm is fixedly connected to the third joint (9) of the support arm; the second joint (8) of the support arm and the third joint (9) of the support arm are hinged to each other through the second joint pin (11) of the support arm, and the second torsion spring (10) of the support arm is sleeved on the second joint pin (11) of the support arm, and one end of the second torsion spring (10) of the support arm is connected to the second joint (8) of the support arm through the second joint torsion spring fixing hole (8-1) of the support arm, and the other end is connected to the third joint (9) of the support arm through the third joint torsion spring fixing hole (9-1) of the support arm, so that the buffering effect of the second torsion spring (10) of the support arm is realized when the second joint (8) of the support arm and the third joint (9) of the support arm are twisted; The first arm joint (4) is hingedly connected to the central frame (1) via the first arm joint pin (6); the first arm torsion spring (5) is sleeved on the first arm joint pin (6); the central frame (1) is provided with N central frame torsion spring fixing holes (1-1) evenly distributed around the circumference; one end of the first arm torsion spring (5) is connected to the central frame (1) via the central frame torsion spring fixing hole (1-1); and the other end is connected to the first arm joint (4) via the first arm joint torsion spring fixing hole (4-1), so that the first arm torsion spring (5) can achieve a buffering effect when the arm assembly and the central frame (1) are twisted.

2. The detachable descent device according to claim 1, characterized in that: The central component is composed of a central frame (1), a cushioning airbag (2), and a support rope (3); the support rope (3) is fixed to the bottom of the central frame (1); the cushioning airbag (2) is placed on the support rope (3); the target object (17) is placed on the cushioning airbag (2) and is bound to the central frame (1) via a fixing ring (18).

3. The detachable descent device according to claim 1, characterized in that: The number of center frame torsion spring fixing holes provided in the center frame (1) is set according to requirements.

4. The detachable descent device according to claim 1, wherein: The parachute assembly is composed of a parachute buckle (13), a parachute rope (14), a parachute canopy (15), and an elastic rod (16). Two elastic rods (16) are cross-shaped, and four ends are fixedly connected to the edges of the parachute canopy (15). One end of the four parachute ropes (14) is fixedly connected to the parachute canopy (15), and the other end is fixedly connected to the parachute buckle (13).

5. The detachable descent device according to claim 1 or 4, characterized in that: The second joint (8) of the support arm is hooked on the parachute buckle (13), so that the support arm assembly is hooked under the parachute assembly. When the second joint (8) of the support arm twists with the third joint (9) of the support arm, the parachute buckle (13) slips off, realizing the separation of the parachute assembly from the support arm assembly.

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