A parachute and its packaging method for avoiding parachute-opening entanglement

Abstract

The present invention discloses a parachute that avoids parachute-opening entanglement, including a parachute canopy and suspension lines. Among them: It further includes an elastic restraint member. The elastic restraint member is in a loop shape and surrounds the middle part in the length direction of the suspension lines, binding the sequentially arranged suspension lines. There is only contact but no mutual restraint connection between the elastic restraint member and the suspension lines, and the breaking load-bearing capacity of the elastic restraint member is less than the tension formed by the suspension lines during parachute opening. The elastic restraint member is specially designed with a variety of configurations to adapt to various parachute types and various working conditions. In the process of packing the parachute of the present invention, the suspension lines of the parachute can be processed more regularly and orderly, ensuring the orderly arrangement of the suspension lines in the parachute pack. During parachute opening, the opening force formed by the parachute canopy driving the suspension lines is dozens of times the breaking force that an elastic restraint member such as a rubber cord can withstand, which will break the rubber cord, and the rubber cord will fall off by itself without affecting the parachute-opening speed. The material is easily obtainable and hardly increases the original weight; the process is simple and feasible and will not affect the various indicators of the parachute.

Description

Technical Field

[0001] The present invention belongs to the field of parachutes, and particularly relates to a parachute that avoids entanglement during opening and its packaging method. Background Art

[0002] Parachutes are used for the aerial deceleration of dropped objects to meet various practical needs. A parachute generally consists of a canopy and suspension lines as the main components. When the parachute opens in the air and the canopy and suspension lines become entangled, the parachute will fail and the drop will be unsuccessful. Or if there is partial entanglement between the suspension lines, it will cause the parachute system to yaw unstably, which poses higher requirements for the packaging of the parachute.

[0003] In the past packaging process of the parachute, the suspension lines were straightened before packaging. However, after the canopy and suspension lines are placed in the parachute pack in a certain order and sealed, a large external force often has to be applied to the canopy and suspension lines. In order to compress the volume as much as possible to fit into the parachute pack, a parachute pressing device may even be used. In this case, the packaging state of the suspension lines may be unstable, affecting the subsequent opening of the parachute. Summary of the Invention

[0004] In view of at least one of the above defects or improvement requirements in the prior art, the present invention provides a parachute that avoids entanglement during opening and its packaging method, which can handle the suspension lines of the parachute more regularly and orderly during the packaging process of the parachute, ensuring the orderly placement of the suspension lines in the parachute pack.

[0005] To achieve the above object, according to one aspect of the present invention, there is provided a parachute that avoids entanglement during opening, including a canopy and suspension lines, wherein: it further includes an elastic restraint member, the elastic restraint member is in a circular shape and surrounds the middle part of the length direction of the suspension lines, bundling the sequentially arranged suspension lines; there is only contact but no mutual restraint connection between the elastic restraint member and the suspension lines, and the breaking load-bearing capacity of the elastic restraint member is less than the tension formed by the suspension lines during opening. The elastic restraint member is specially designed with a variety of configurations to adapt to various parachute types and various working conditions.

[0006] Further preferably, there are a plurality of elastic restraint members, which are sequentially arranged at intervals from top to bottom along the length direction of the suspension lines, forming a plurality of bundling loops.

[0007] Further preferably, the elastic restraint member is a single continuous elastic body;

[0008] One end of the single continuous elastic body has a sliding buckle, and the other end has a stop member;

[0009] The sliding buckle sleeved on the body of the single continuous elastic body itself and can slide along the body, tighten when bundling the suspension lines, and slide to the end to be blocked by the stop member during opening.

[0010] Further preferably, the elastic restraint includes two continuous elastomers, namely a first continuous elastomer and a second continuous elastomer;

[0011] Among the two ends of the first continuous elastomer, the head end is a first free end, and the tail end is provided with an anti-disengagement member;

[0012] Among the two ends of the second continuous elastomer, the head end is provided with a sliding sleeve, and the tail end is a second free end. The first free end and the second free end can be connected during bundling. The sliding sleeve sleeves the body of the first continuous elastomer and can slide along the body. When bundling the suspension lines, it tightens, and when the parachute opens, it slides to the tail end of the first continuous elastomer and is caught by the anti-disengagement member.

[0013] Further preferably, the elastic restraint has at least one slit.

[0014] Further preferably, a plurality of upper serrations along the length direction are arranged on the upper side in the transverse direction of the elastic restraint. When bundling the suspension lines, the upper serrations face the parachute canopy.

[0015] Further preferably, a plurality of lower serrations along the length direction are arranged on the lower side in the transverse direction of the elastic restraint. When bundling the suspension lines, the lower serrations face the load under the parachute.

[0016] Further preferably, the elastic restraint has a middle slit;

[0017] The middle slit is opened in the middle of the body of the elastic restraint and is spaced apart from the edges on both transverse sides.

[0018] To achieve the above object, according to another aspect of the present invention, there is also provided a packaging method for a parachute to avoid entanglement during opening, including the following steps:

[0019] S1. When loading the parachute canopy and the suspension lines into the parachute pack, first smooth out the parachute canopy and the suspension lines;

[0020] S2. Then arrange the parachute canopy and the suspension lines into a bundle;

[0021] S3. Bundle the suspension lines with an elastic restraint in the middle of the length direction of the suspension lines to prevent the suspension lines from spreading;

[0022] S4. Then press the parachute canopy and the suspension lines into the parachute pack in a predetermined order as required by the designer, and then seal the pack.

[0023] Further preferably, in step S3, in the middle of the length direction of the suspension lines, at intervals from top to bottom along the length direction of the suspension lines, bundle the suspension lines with a plurality of elastic restraints respectively to form a plurality of bundling circles, so that the excess suspension lines above and below do not spread.

[0024] As long as the above-mentioned preferred technical features do not conflict with each other, they can be combined with each other.

[0025] Generally speaking, compared with the prior art, the above technical solutions conceived by the present invention have the following beneficial effects:

[0026] 1. For the parachute that avoids parachute line entanglement and its packaging method of the present invention, the parachute lines can be processed more regularly and orderly during the process of packaging the parachute, ensuring the orderly arrangement of the parachute lines in the parachute pack.

[0027] 2. For the parachute that avoids parachute line entanglement of the present invention, when the parachute opens, the opening force formed by the parachute canopy driving the parachute lines is dozens of times the breaking force that an elastic restraint such as a rubber cord can withstand, and the rubber cord will be broken, and the rubber cord will fall off by itself without affecting the opening speed of the parachute. Even if due to the elasticity and sliding of the rubber cord, the rubber cord retreats to the root of the parachute line (at position C) after the parachute opens and is not broken, it does not affect the normal operation of the parachute.

[0028] 3. For the parachute that avoids parachute line entanglement of the present invention, the materials are easy to obtain and hardly increase the original weight; the process is simple and feasible and will not affect the various indicators of the parachute. By bundling rubber cords on the parachute lines and through calculation and wind tunnel tests for different parachute canopy types, the optimal bundling position is determined to achieve the various indicators that do not affect the parachute opening action and prevent the parachute lines from entangling after opening.

[0029] 4. For the parachute that avoids parachute line entanglement of the present invention, for larger parachutes and parachute canopy types with longer parachute lines, by setting multiple upper and lower bundling loops, it is ensured that the parachute lines are in good order throughout the entire length range during packaging and no entanglement will occur during the parachute opening process.

[0030] 5. For the parachute that avoids parachute line entanglement of the present invention, the elastic restraint can adopt a single continuous elastic body, with a sliding buckle at one end and a stop at the other end; the sliding buckle sleeved on the body of the single continuous elastic body and can slide along the body and tighten when bundling the parachute lines. Compared with a whole-circle fixed elastic restraint, it can first slide to the end and be blocked by the stop when the parachute opens. This sliding stroke gives a certain degree of freedom for the parachute lines to open and also gives a certain degree of restraint to prevent the parachute lines from opening without restraint and interfering with each other, further ensuring the safety and orderliness of parachute opening.

[0031] 6. For the parachute of the present invention that avoids entanglement during parachute opening, the elastic restraint member can also adopt a way of two continuous elastomers passing through each other. Among the two ends of the first continuous elastomer, the head end is the first free end, and the tail end has an anti-disengagement member; among the two ends of the second continuous elastomer, the head end has a sliding sleeve, and the tail end is the second free end. When bundling, first connect the first free end and the second free end to each other, such as by tying a knot. Compared with the whole-circle fixed type, the two free ends facilitate the encircling operation during the bundling of the middle part of the suspension lines and do not need to be threaded through from both ends; the sliding sleeve of the second continuous elastomer sleeves the body of the first free end of the first continuous elastomer and can slide along the body with a certain pre-tightening force, and tightens when bundling the suspension lines, ensuring that it will not slide under the natural tension state during bundling. When the parachute opens, it first slides to the tail end of the first continuous elastomer and is blocked by the anti-disengagement member. This sliding stroke not only gives a certain degree of freedom for the suspension lines to open, but also gives a certain restraint and limitation, so that the suspension lines will not open without restraint and interfere with each other, further ensuring the safety and orderliness of parachute opening.

[0032] 7. For the parachute of the present invention that avoids entanglement during parachute opening, in order to accelerate the fracture speed of the elastic restraint member during parachute opening and speed up the parachute opening progress, at least one slit is pre-set on the body of the elastic restraint member. When the parachute opens, the opening force formed by the parachute canopy driving the suspension lines is conducted to these slits through the body of the elastic restraint member, and it is easier to tear the elastic restraint member under the tensioning action.

[0033] 8. For the parachute of the present invention that avoids entanglement during parachute opening, the slit on the body of the elastic restraint member can adopt a serrated edge structure form, forming a whole serrated section or several spaced small serrated sections. When the parachute opens, as long as one serrated opening fractures, the suspension lines can be smoothly released, so the fracture speed is increased and the fracture probability is ensured.

[0034] 9. For the parachute of the present invention that avoids entanglement during parachute opening, there is also a special design for the orientation of the serrated openings during bundling. When using an upper and lower single-loop elastic restraint member, whether to use an upper serrated opening or a lower serrated opening depends on the parachute type. For parachute types with a large opening tension, the tension is sufficient to ensure tearing the opening, so it is feasible regardless of the orientation of the serrated opening, and it is better to face upward; for parachute types with a smaller opening tension, it is preferred to use an upper serrated opening. In this way, when the parachute opens, the parachute canopy opens, and the suspension lines open sequentially from top to bottom, and the tension develops from top to bottom. The upper serrated opening is easier to crack under the action of the tension.

[0035] 10. The parachute of the present invention that avoids entanglement when opening the parachute, when using multiple upper and lower elastic restraints, such as two upper and lower circles, when opening the parachute, although the tension is greater at the top and smaller at the bottom after the canopy is opened, the tension of the upper segment of the parachute rope is relatively small before the canopy is opened, and this moment of opening the parachute is crucial, so the elastic restraint of the upper circle is specially designed to adopt the structure of the upper serrated mouth, so that even in the initial stage of the canopy opening, the smaller tension of the upper segment of the parachute rope can tear the upper circle. Furthermore, after the canopy is opened to a large extent, the tension of the parachute rope has increased rapidly, and after being transmitted to the lower circle elastic restraint, tearing the lower circle is no longer a problem, and what needs to be considered is the opening sequence and body feeling of the lower end of the parachute rope. Therefore, the elastic restraint of the lower circle is specially designed to adopt the structure of the lower serrated mouth, so that before the lower circle is torn, the straightening force of the upper segment of the parachute rope is transmitted to the lower segment of the parachute rope to gain instantaneous time, so that each of the lower segments of the parachute rope is instantly pre-straightened and separated from each other to avoid entanglement, and then the lower circle is torn again and quickly restores the normal shape of the parachute, so that the whole parachute opening process is orderly, giving people a smooth and comfortable body feeling.

[0036] 11. Although the serrated crack has the above advantages, the roughness of the parachute ropes of some umbrella types is different due to design requirements. During the packaging or opening process, if the parachute ropes scratch the serrated cracks, resulting in the cracking timing not meeting expectations, it is easy to cause danger. In order to prevent this phenomenon, a main body crack structure of an elastic constraint is also provided, that is, a middle crack, which is opened in the middle of the main body of the elastic constraint and is separated from the edges on both sides of the lateral side, rather than on both sides of the lateral side, thus avoiding the risk of cracking from the edge.

[0037] 12. The parachute of the present invention that avoids entanglement during parachute opening has a specially designed middle crack of the elastic restraint, such as a circular shape, arranged in sequence and spaced apart, and the opening size is determined by calculation and experiment. More preferably, it is a long strip or elliptical shape or the like, with the long axis perpendicular to the longitudinal direction, so that the crack develops from both ends of the long axis to the edge to control the cracking direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of a parachute for preventing entanglement during parachute opening according to an embodiment of the present invention;

[0039] Figure 2 Schematic diagram of a first elastic restraint member for preventing entanglement when opening a parachute according to an embodiment of the present invention;

[0040] Figure 3 Schematic diagram of a second elastic restraint member for preventing entanglement when opening a parachute according to an embodiment of the present invention;

[0041] Figure 4 Schematic diagram of a third elastic restraint member for preventing entanglement when opening a parachute according to an embodiment of the present invention;

[0042] Figure 5Schematic diagram of the fourth elastic restraint for the parachute that avoids entanglement during parachute opening according to an embodiment of the present invention;

[0043] Figure 6 Schematic diagram of a parachute with a third elastic restraint;

[0044] Figure 7 Schematic diagram of a parachute with third and fourth elastic restraints;

[0045] Figure 8 Schematic diagram of the fifth elastic restraint for the parachute that avoids entanglement during parachute opening according to an embodiment of the present invention;

[0046] Figure 9 Schematic diagram of the sixth elastic restraint for the parachute that avoids entanglement during parachute opening according to an embodiment of the present invention;

[0047] Figure 10 Schematic diagram of a parachute with a single-loop sixth elastic restraint;

[0048] Figure 11 Schematic diagram of a parachute with a two-loop sixth elastic restraint.

[0049] The width or reference ratio of the elastic restraint in the figure is only for illustration and is not intended to be a specific limitation. Detailed implementation manners

[0050] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present 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 only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The present invention will be further described in detail below with reference to the specific implementation manners.

[0051] As Figures 1-11 shown, the present invention provides a parachute that avoids entanglement during parachute opening, including a parachute canopy 1 and suspension lines 2, wherein: an elastic restraint 3 is further included. Taking a rubber cord as an example for illustration, the elastic restraint 3 is in a loop shape and surrounds the middle part of the suspension lines 2 in the length direction thereof, binding the sequentially arranged suspension lines 2; there is only contact between the elastic restraint 3 and the suspension lines 2 without mutual restraint connection, and the breaking bearing force of the elastic restraint 3 is less than the tension formed by the suspension lines 2 during parachute opening.

[0052] For a smaller parachute type, there is one elastic restraint 3, forming a binding loop.

[0053] As Figure 1As shown, further preferably, there are a plurality of elastic restraint members 3, which are sequentially arranged at intervals from top to bottom along the length direction of the umbrella ropes 2 to form a plurality of binding loops. For example, an upper loop is arranged at position A and a lower loop is arranged at position B. For larger umbrellas with longer umbrella ropes, by setting multiple upper and lower binding loops, it is ensured that the umbrella ropes are in good order during packaging within the entire length range, and no entanglement will occur during the process of opening the umbrella.

[0054] Further preferably, the elastic restraint member 3 is of an integral circular fixed type. One integral circle is a whole, and there are different perimeter size models for different upper and lower binding positions.

[0055] As Figure 2 shown, further preferably, the elastic restraint member 3 is a single continuous elastic body 31; one end of the single continuous elastic body 31 has a sliding buckle 32, and the other end has a stop member 33; the sliding buckle 32 sleeved on the body of the single continuous elastic body 31 itself and is slidable along the body, tightened when binding the umbrella ropes 2, and slides to the end to be blocked by the stop member 33 when opening the umbrella.

[0056] As Figure 3 shown, further preferably, the elastic restraint member 3 includes two continuous elastic bodies, namely a first continuous elastic body 301 and a second continuous elastic body 302; among the two ends of the first continuous elastic body 301, the head end is a first free end 3011, and the tail end has an anti - detachment member 3012; among the two ends of the second continuous elastic body 302, the head end has a sliding sleeve 3021, and the tail end is a second free end 3022. The first free end 3011 and the second free end 3022 can be connected by a manual or automatic device during binding (not connected usually), and the sliding sleeve 3021 sleeved on the body of the first continuous elastic body 301 and is slidable along the body, tightened when binding the umbrella ropes 2, and slides to the tail end of the first continuous elastic body 301 to be blocked by the anti - detachment member 3012 when opening the umbrella.

[0057] Further preferably, the elastic restraint member 3 has at least one slit, and the form of the slit is not limited. Several preferred solutions are introduced below.

[0058] As Figure 4 、 6 shown, further preferably, a plurality of upper serrated openings 3041 along the length direction are arranged on the upper side in the transverse direction of the elastic restraint member 3. When binding the umbrella ropes 2, the upper serrated openings 3041 face the umbrella canopy 1.

[0059] As Figure 5 、 7 shown, further preferably, a plurality of lower serrated openings 3042 along the length direction are arranged on the lower side in the transverse direction of the elastic restraint member 3. When binding the umbrella ropes 2, the lower serrated openings 3042 face the load under the umbrella.

[0060] Further preferably, the elastic restraint member 3 has an intermediate slit 305; the intermediate slit 305 is opened in the middle of the body of the elastic restraint member 3 and is spaced apart from the edges on both lateral sides. The form of the intermediate slit is not limited, and several preferred solutions will be introduced below.

[0061] As Figure 8 shown, the intermediate slit is circular. As Figures 9-11 shown, the intermediate slit is preferably oval or the like.

[0062] The packaging method of the parachute for avoiding parachute-opening entanglement in the present invention includes the following steps:

[0063] S1. When loading the parachute canopy 1 and the suspension lines 2 into the parachute pack, first smooth out the parachute canopy 1 and the suspension lines 2;

[0064] S2. Then arrange the parachute canopy 1 and the suspension lines 2 into a bundle;

[0065] S3. At the middle part of the length direction of the suspension lines 2, tie up the suspension lines 2 with the elastic restraint member 3 to prevent the suspension lines from spreading;

[0066] S4. Then press the parachute canopy 1 and the suspension lines 2 into the parachute pack in a predetermined order as required by the designer, and then seal the pack.

[0067] Further preferably, in step S3, at the middle part of the length direction of the suspension lines 2, at intervals from top to bottom along the length direction of the suspension lines 2, tie up the suspension lines 2 with a plurality of elastic restraint members 3 respectively to form a plurality of tying circles, so that the excess suspension lines above and below do not spread.

[0068] The parachute for avoiding parachute-opening entanglement in the present invention and its packaging method can handle the suspension lines of the parachute more regularly and orderly during the packaging process of the parachute, ensuring the orderly arrangement of the suspension lines in the parachute pack.

[0069] For the parachute for avoiding parachute-opening entanglement in the present invention, when the parachute opens, the opening force formed by the parachute canopy driving the suspension lines is dozens of times the breaking force that the elastic restraint member such as a rubber cord can withstand, and the rubber cord will be broken, and the rubber cord will fall off by itself without affecting the opening speed of the parachute. Even if due to the elasticity and sliding of the rubber cord, after the parachute opens, the rubber cord is forced back to the root of the suspension line (at position C) and is not broken, it does not affect the normal operation of the parachute.

[0070] The parachute for avoiding parachute-opening entanglement in the present invention is easy to obtain materials and hardly increases the original weight; the process is simple and feasible and will not affect the various indexes of the parachute. By tying rubber cords on the suspension lines, for different parachute types, through calculation and wind tunnel tests, the optimal tying positions are determined to achieve the indexes that do not affect the parachute-opening action and prevent the suspension lines from entangling after the parachute opens.

[0071] The parachute of the present invention that avoids parachute-opening entanglement, for larger parachutes with longer suspension lines, by arranging multiple upper and lower bundling rings, ensures that the suspension lines are in good order during packaging within the full length range, and no entanglement will occur during the parachute-opening process.

[0072] For the parachute of the present invention that avoids parachute-opening entanglement, the elastic restraint can adopt a single continuous elastic body, with a sliding buckle at one end and a stop at the other end; the sliding buckle sleeves the body of the single continuous elastic body itself and can slide along the body, and tightens when bundling the suspension lines. Compared with a whole-circle fixed elastic restraint, it can slide to the end and be blocked by the stop during parachute opening. This sliding stroke not only gives a certain degree of freedom for the suspension lines to open, but also gives a certain degree of restraint and limitation, so that the suspension lines will not open without restraint and interfere with each other, further ensuring the safety and orderliness of parachute opening.

[0073] For the parachute of the present invention that avoids parachute-opening entanglement, the elastic restraint can also adopt the way of two continuous elastic bodies passing through each other. Among the two ends of the first continuous elastic body, the head end is the first free end, and the tail end has an anti-disengagement part; among the two ends of the second continuous elastic body, the head end has a sliding sleeve, and the tail end is the second free end. When bundling, first connect the first free end and the second free end to each other, such as by tying a knot. Compared with a whole-circle fixed type, the two free ends facilitate the encircling operation when bundling the middle part of the suspension lines and do not need to be threaded through from both ends; and the sliding sleeve of the second continuous elastic body sleeves the body of the first free end of the first continuous elastic body and can slide along the body, and has a certain pre-tightening force, and tightens when bundling the suspension lines to ensure that it will not slide under the natural tension state during bundling, and will slide to the tail end of the first continuous elastic body and be blocked by the anti-disengagement part during parachute opening. This sliding stroke not only gives a certain degree of freedom for the suspension lines to open, but also gives a certain degree of restraint and limitation, so that the suspension lines will not open without restraint and interfere with each other, further ensuring the safety and orderliness of parachute opening.

[0074] For the parachute of the present invention that avoids parachute-opening entanglement, in order to accelerate the fracture speed of the elastic restraint during the parachute-opening process and speed up the parachute-opening progress, at least one slit is pre-set on the body of the elastic restraint. During parachute opening, the opening force formed by the parachute canopy driving the suspension lines is transmitted to these slits through the body of the elastic restraint, and it is easier to tear the elastic restraint under the tensioning action.

[0075] For the parachute of the present invention that avoids parachute-opening entanglement, the slit on the body of the elastic restraint can adopt a serrated edge structure form, forming a whole serration or several spaced small serrations. During parachute opening, as long as one serration breaks, the suspension lines can be smoothly released, so the fracture speed is increased and the fracture probability is ensured.

[0076] The parachute of the present invention that avoids entanglement during parachute opening also has a special design for the direction of the serrated opening when tying. When upper and lower single-loop elastic restraints are used, whether the upper serrated opening or the lower serrated opening is used depends on the type of the parachute. For an umbrella type with a large tension during parachute opening, the tension is sufficient to ensure the tearing opening, so no matter what the direction of the serrated opening is, it is feasible, and the upward direction is more preferred; for an umbrella type with a small tension during parachute opening, the upper serrated opening is preferably used, so that when the parachute is opened, the canopy is opened, and the parachute ropes are opened sequentially from top to bottom, and the tension develops from top to bottom, and the upper serrated opening is more likely to tear under the action of the tension.

[0077] The parachute of the present invention that avoids entanglement during parachute opening, when using multiple upper and lower elastic restraints, such as two upper and lower circles, when opening the parachute, although the tension is greater at the top and smaller at the bottom after the canopy is opened, the tension of the upper segment of the parachute rope is relatively small before the canopy is opened, and this moment of opening the parachute is crucial, so the elastic restraint of the upper circle is specially designed to adopt the structure of the upper serrated mouth, so that even in the initial stage of the canopy opening, the relatively small tension of the upper segment of the parachute rope can tear the upper circle. Furthermore, after the canopy is opened to a large extent, the tension of the parachute rope has been rapidly increased, and after being transmitted to the lower circle elastic restraint, tearing the lower circle is no longer a problem, and what needs to be considered is the opening sequence and body feeling of the lower end of the parachute rope, so the elastic restraint of the lower circle is specially designed to adopt the structure of the lower serrated mouth, before the lower circle is torn, instantaneous time is gained for the straightening force of the upper segment of the parachute rope to be transmitted to the lower segment of the parachute rope, so that each of the lower segments of the parachute rope is instantly pre-straightened and separated from each other to avoid entanglement, and then the lower circle is torn again and quickly restores the normal shape of the parachute, so that the entire parachute opening process is orderly, giving people a smooth and comfortable body feeling.

[0078] Although the serrated crack has the above advantages, the roughness of the parachute ropes of some umbrella types is different due to design requirements. During the packaging or opening process, if the parachute ropes scratch the serrated cracks, resulting in the cracking timing not being in line with expectations, it is easy to cause danger. In order to prevent this phenomenon, a main body crack structure of an elastic constraint is also provided, that is, a middle crack, which is opened in the middle of the main body of the elastic constraint and is separated from the edges on both sides of the lateral side, rather than on both sides of the lateral side, thus avoiding the risk of cracking from the edge.

[0079] The parachute of the present invention that avoids entanglement during parachute opening has a specially designed middle crack of the elastic restraint, such as a circular shape, arranged in sequence and spaced apart, and the opening size is determined by calculation and experiment. More preferably, it is a long strip or elliptical shape or the like, with the long axis perpendicular to the longitudinal direction, so that the crack develops from both ends of the long axis to the edge to control the cracking direction.

[0080] It is understandable that the embodiments of the system described above are merely illustrative. The units described as separate components may or may not be physically separated, and may be located in one place or distributed to different network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without creative efforts.

[0081] In addition, those skilled in the art should understand that in the application documents of the embodiments of the present invention, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0082] In the description of the embodiments of the present invention, a large number of specific details are set forth. However, it should be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and technologies are not shown in detail so as not to obscure the understanding of this specification. Similarly, it should be understood that in order to streamline the disclosure of the embodiments of the present invention and assist in understanding one or more of the various inventive aspects, in the above description of the exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof.

[0083] However, the disclosed method should not be construed as reflecting the intention that the claimed embodiments of the present invention require more features than are expressly recited in each claim. Rather, as reflected by the claims, the inventive aspects lie in less than all the features of the single preceding disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into the detailed description, where each claim stands on its own as a separate embodiment of the present invention.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and not to limit them; although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A parachute for avoiding parachute opening entanglement, comprising a parachute canopy (1) and suspension lines (2), characterized in that: It further includes an elastic restraint member (3). The elastic restraint member (3) is in a loop shape. The elastic restraint member (3) only contacts but does not connect to the suspension lines (2), and bundles the sequentially arranged suspension lines (2) around the middle part of the length direction of the suspension lines (2) to tighten the suspension lines. One end of the elastic restraint member has a sliding buckle, and the other end has a stopper. The sliding buckle is sleeved on the body of the elastic restraint member and can slide along the body and slide to the end to be stopped by the stopper when the parachute opens. The elastic restraint member (3) is provided with at least one slit or serrated opening. The breaking bearing force of the elastic restraint member (3) is less than the tension formed by the suspension lines (2) when the parachute opens, so that the elastic restraint member (3) breaks under the tension of the suspension lines (2).

2. The parachute for avoiding entanglement during opening according to claim 1, characterized in that: There are multiple elastic restraint members (3), which are sequentially arranged at intervals from top to bottom along the length direction of the suspension lines (2) to form multiple bundling loops.

3. The parachute for avoiding entanglement during opening according to claim 1, characterized in that: The elastic restraint member (3) is a single continuous elastic body (31).

4. The parachute for avoiding entanglement during opening according to claim 1, characterized in that: The elastic restraint member (3) includes two continuous elastic bodies, namely a first continuous elastic body (301) and a second continuous elastic body (302); Among the two ends of the first continuous elastic body (301), the head end is the first free end (3011); Among the two ends of the second continuous elastic body (302), the tail end is the second free end (3022), and the first free end (3011) and the second free end (3022) can be connected during bundling.

5. The parachute for avoiding entanglement during opening according to claim 1, characterized in that: A plurality of upper serrated openings (3041) along the length direction are provided on the upper side in the transverse direction of the elastic restraint member (3). When bundling the suspension lines (2), the upper serrated openings (3041) face the parachute canopy (1).

6. The parachute for avoiding entanglement during opening according to claim 1, characterized in that: A plurality of lower serrated openings (3042) along the length direction are provided on the lower side in the transverse direction of the elastic restraint member (3). When bundling the suspension lines (2), the lower serrated openings (3042) face the load under the parachute.

7. The parachute for avoiding entanglement during opening according to claim 1, characterized in that: The elastic restraint member (3) has a middle slit (305); The middle slit (305) is opened in the middle of the body of the elastic restraint member (3) and is spaced apart from the edges on both transverse sides.

Images