Parawing stable guiding parachute device suitable for two persons
By designing a stable guide umbrella device suitable for double-persons, using the variable area structure and blast bag design, the problems of unstable off-machine attitude, difficulty in opening speed control and overload of the umbrella during high-altitude parachute diving are solved, and multifunctional safety control and gliding performance are achieved.
Patent Information
- Application Number
- CN202411970354.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-05-13
AI Technical Summary
During the two-person high-altitude parachuting process, parachuting personnel are easily affected by the aircraft wake, resulting in rolling torque, which in turn increases the rotation speed and threatens off-aircraft safety. The prior art is difficult to achieve umbrella opening speed control and umbrella opening overload control while ensuring a large stable umbrella area.
A stable guide umbrella device suitable for double-person wings is designed. The variable area structure design is realized through the structural arrangement of inner and outer parapet ropes, and the blower bag is increased to improve the stability when the area is changed. The stable umbrella is automatically reduced to make the stable umbrella double-used as a guide umbrella.
It realizes various functions of off-machine attitude stability, parachute opening speed control and parachute opening overload control, ensuring the safety of high-altitude and heavy skydiving for two people, controlling the parachute opening program of the main parachute of the wing parachute, and improving gliding flight performance.
Smart Images
Figure CN119975801A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of airborne airdrop, and specifically, is a design method for a wing parachute stabilizing guide parachute device suitable for two persons. Background Art
[0002] During tandem skydiving, at high speed and with high weight, the skydiver is affected by the aircraft wake at the moment of parachute opening. The blowing force does not pass through the center of gravity of the human body, which will generate a torque that causes the skydiver to roll. This rolling torque superimposed on the high speed of leaving the aircraft will cause the skydiver to rotate at a relatively high speed, posing a great threat to the safety of the skydiver leaving the aircraft. Therefore, it is necessary to have an air stabilization and deceleration method. Commonly used air stabilization and deceleration methods include: stabilizer parachute, stabilizer plate, stabilizer bar, etc. After leaving the aircraft, in order to ensure that the parachute opening process is controllable, a guide parachute is usually used to pull the parachute out of the parachute bag and straighten it, so that the main parachute can be inflated smoothly. Common types of guide parachutes are soft guide parachutes and spring frame guide parachutes. When the area of the stabilizer parachute is small, it can also be used directly as a guide parachute.
[0003] Stabilized parachutes are widely used due to their light weight, smaller size than the main parachute of a wing parachute, simple structure, large drag area, and good stable deceleration. In order to improve attitude stability and the speed control effect of parachute opening, the stabilized parachute of a tandem parachute requires a larger drag area, but a larger canopy area will affect the main parachute opening procedure. The wing parachute is a lightweight and efficient unpowered gliding flight sports equipment. An oversized stabilized parachute will affect the gliding flight performance of the wing parachute, causing the gliding ability and control ability of the wing parachute to be weakened. In particular, the canopy area of the tandem parachute itself is large, and the total weight of the system is large. In order to achieve overload control of parachute opening, the stabilized parachute not only needs to have a larger drag area, but it is also difficult to use directly as a guide parachute. Summary of the invention
[0004] The purpose of the present invention is to provide a stabilizing and guiding parachute device suitable for a double-person parachute.
[0005] The technical solution to achieve the purpose of the present invention is: a wing parachute stabilizing and guiding parachute device suitable for two people, including a connecting rope, a parachute rope protection yarn, an outer parachute rope, a detachable rope buckle, an inner parachute rope, a protection yarn tape, a radiation reinforcement tape, a surrounding cloth, a blast bag, a top cloth and a rope buckle lining tape;
[0006] The lower end of the connecting rope is connected with a metal ring, the upper end of the connecting belt is connected to the lower end of the outer umbrella rope and the umbrella rope protection yarn, 6 to 12 wedge-shaped mesh cloths are spliced together by sewing to form the umbrella rope protection yarn, the umbrella rope protection yarn wraps the outer umbrella rope inside the stable umbrella, and all splicing locations use radiation reinforcement belts to limit and reinforce the umbrella rope protection yarn, the short side of the wedge-shaped mesh cloth faces downward, and the lower edge of the umbrella rope protection yarn is sewn and connected to the connecting rope; 6 to 18 square silk cloths are spliced together by sewing to form a surrounding width, the lower end of which is lock-sewn to the upper end of the umbrella rope protection yarn, and a protective yarn tape is sewn at the connection for limiting and reinforcement; 6 to 18 wedge-shaped silk cloths and a single round silk cloth are spliced together by sewing to form a top width, the long side of the wedge-shaped silk cloth faces downward, the top width is connected to the upper end of the surrounding width by lock-sewing, and the short side of the wedge-shaped silk cloth faces upward. A cord lock lining is sewn at the joint of the radiation reinforcement belt and the surrounding area, and the cord lock lining is fastened and sewn to one end of the inner parachute rope; the number of inner parachute ropes is the same as the number of cord lock linings, and the other end of the inner parachute rope is connected to a detachable cord lock.
[0007] Furthermore, the detachable cord buckle is also connected to the coat protection bag, and one end of the detachable cord buckle is connected to the lining belt of the connecting belt.
[0008] Furthermore, it is preferred to use 6 to 12 cord lock lining tapes evenly distributed at the connection between the umbrella cord protection yarn and the circumference.
[0009] Furthermore, the area of the stable parachute state is 1.5 to 8 m2, and the area after becoming a guide parachute is 0.75 to 2 m2. The ratio of the area of the stable parachute state to the area of the guide parachute state is preferably 1.5:1 to 4:1. The parachute canopy adopts an inverted truncated cone umbrella, which is composed of 6 to 18 surrounding panels and a top panel sewn together, and is longitudinally reinforced by radial reinforcement belts.
[0010] Furthermore, 4 to 10 air blowing bags are sewn at the top opening of the top panel.
[0011] Furthermore, the connecting belt preferably has a length of 2m to 8m and a width of 10 to 60mm.
[0012] Furthermore, an opening reinforcement belt is used at the opening at the upper end of the top panel to reinforce and limit the opening.
[0013] Furthermore, the number of the outer parachute ropes is 6 to 12.
[0014] Compared with the prior art, the present invention has the following significant advantages: a variable area structural design is achieved through the structural arrangement design of the inner and outer parachute ropes, and the addition of the blowing bag improves the stability when the area is changed; at the same time, by automatically reducing the area, the stabilizing parachute is used as a guide parachute, thereby achieving multiple functions such as stable departure posture, parachute opening speed control and parachute opening overload control. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1It is a structural schematic diagram of a wing parachute stabilizing and guiding parachute device suitable for two persons of the present invention. DETAILED DESCRIPTION
[0016] The present invention is a wing parachute stabilizing and guiding parachute device suitable for two people, which can solve the problems of stable attitude of leaving the aircraft, control of parachute opening speed and control of parachute opening overload during two-person wing parachuting. It can achieve the safety of high-altitude, two-person heavy-weight parachuting, ensure that the parachute rope is straightened in order before the canopy is pulled out, and effectively control the opening procedure of the main parachute of the wing parachute. In order to solve the problem that the wing parachute stabilizing parachute for two people requires a large resistance area, the present invention integrates a stabilizing parachute and a soft guiding parachute, and develops a stabilizing and guiding parachute that has the functions of air stabilization, deceleration and pulling out the main parachute, which can be used in conjunction with a wing parachute for two people at high altitude and with a high speed.
[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0018] The technical solution of the present invention is to design a tandem parachute stabilizing and guiding parachute device suitable for high-altitude, high-speed, and high-weight parachuting, which has the functions of high-altitude, high-weight parachuting, leaving the aircraft posture stabilization, parachute opening speed control, and parachute opening overload control. The device comprises: a connecting rope, parachute rope protection yarn, an outer parachute rope, a detachable rope buckle, an inner parachute rope, a protection yarn tape, a radiation reinforcement tape, a surrounding width, a blast bag, an orifice reinforcement tape, a top width, a protection bag, and a rope buckle lining tape.
[0019] The detailed scheme of the device is as follows: the lower end of the connecting belt 1 is connected with a metal ring (preferably stainless steel, aluminum alloy and titanium alloy and other high-strength metal materials), preferably brocade ribbon, polyester ribbon, aramid ribbon and other ribbon textile materials, preferably 2m to 8m in length, preferably 10 to 60mm in width. The upper end of the connecting belt 1 is connected with the outer umbrella rope 3, and the outer umbrella rope 3 preferably uses a brocade rope or polyethylene rope with a diameter of 1mm to 5mm. 6 to 12 wedge-shaped mesh cloths are spliced together to form an umbrella rope protection yarn 2 by stitching. The umbrella rope protection yarn 2 wraps the outer umbrella rope inside the stable umbrella to avoid hooking and entanglement with other components. It is preferred to use a mesh cloth with a mesh size of 1mm to 10mm. All splicing places use a radiation reinforcement belt 7 to limit and reinforce the umbrella rope protection yarn. The short side of the wedge-shaped mesh cloth faces downward, and the lower edge of the umbrella rope protection yarn 2 is sutured and connected to the connecting rope 1. 6 to 18 square silk cloths are spliced together to form a surrounding panel 8 by stitching, and the lower end is connected to the upper end of the umbrella rope protection yarn by lock stitching. The connection is sewn with a protective yarn tape 6 for limiting and reinforcing. The square silk cloth is preferably made of silk, brocade silk or polyester silk. 6 to 18 wedge-shaped silk cloths and a single round silk cloth are spliced together to form a top panel 11 by stitching, with the long side of the wedge-shaped silk cloth facing downward. The top panel 11 is connected to the upper end of the surrounding panel 8 by lock stitching. The wedge-shaped silk cloth is preferably made of silk, brocade silk or polyester silk. The short side of the wedge-shaped silk cloth faces upward, and an orifice reinforcement tape 10 is used at the upper end of the top panel 11 to reinforce and limit the orifice.
[0020] The above design is a basic component for realizing the stabilization function of the stable guide parachute. In order to realize the variable area structural design, the device is sewn with a cord buckle lining belt 13 at the splicing point. The cord buckle lining belt 13 is fastened and sewn with one end of the inner parachute rope 5. It is preferred to use 6 to 12 cord buckle lining belts 13 evenly distributed at the connection between the parachute rope protection yarn 3 and the circumference 8. The number of inner parachute ropes 5 is the same as the number of cord buckle lining belts 13. The other end of the inner parachute rope 5 is connected to the detachable cord buckle 4. The detachable cord buckle 4 is also connected to the outer protective bag 12, one end of which is connected to the lining belt of the connecting belt 1.
[0021] The design of the stable guide parachute structure is a variable area structure design, which can automatically reduce the area so that the stable parachute can also be used as a guide parachute. The area of the stable parachute is 1.5 to 8m 2 , after the parachute is transformed into a guide parachute, the area is 0.75~2m 2. The ratio of the area of the stable parachute state to the area of the guide parachute state is preferably 1.5:1 to 4:1. The canopy adopts an inverted truncated cone type parachute, which is composed of 6 to 18 surrounding panels 8 and a top panel 11 sewn together. It has good stability and is longitudinally reinforced by a radiation reinforcement belt 7 to ensure structural strength under heavy weight. It can help parachutists stabilize their posture in the air and reduce the overload of the main parachute opening. 4 to 10 air bags 9 are sewn near the top opening to assist inflation and ensure that the stable guide parachute can be opened reliably. The stable parachute is connected to the wing parachute bag by a connecting rope 1. The length of the connecting rope 1 is preferably 2m to 8m, which can effectively reduce the impact of the torsion of the stable parachute in the air on the parachutes. The variable area structure is realized by connecting the inner parachute rope 5 and the outer parachute rope 3 to the detachable rope buckle 4 and then connecting to the rope buckle lining belt 13. In the initial state before leaving the plane, after the detachable rope buckle 4 gathers the inner parachute rope 5, the top of the parachute is fixed by the inner parachute rope 5, and the outer parachute rope 3 is fixed to the connecting rope 1 below, and the protection of the parachute rope protection yarn 2 is cooperated to ensure that the resistance area in the stable parachute state remains unchanged. After leaving the plane for several seconds, the parachutist's posture is stable, and the speed is reduced to the speed of the main parachute of the wing parachute. Through the manual pulling of the personnel or the operation of the parachute opener, the outer parachute rope 3 is disconnected from the connecting rope 1, and the constraint of the detachable rope buckle 4 disappears. Since it is still in a moving state at this time, the stable parachute continues to inflate, the top of the parachute becomes conical, and the resistance area is reduced. At this time, the main parachute package has been opened, and the stable parachute with a reduced area is used as a guide parachute to bring out the main parachute of the wing parachute, completing the parachute opening program control.
[0022] The actual size sample of this design scheme has been verified by tandem high-altitude skydiving, and its performance meets the design requirements. It has the performance of stable departure posture, parachute opening speed control and parachute opening overload control. Under the condition that the total parachuting weight is 100-280kg, the parachute opening overload is less than 10g, and the time for the canopy to be fully filled is no more than 5 seconds. The departure and parachute opening process is clear, definite and safe, which can meet the needs of tandem skydiving.
Claims
1. A stabilizing and guiding parachute device for a two-person parafoil, characterized in that: It comprises a connecting rope (1), a parachute rope protection yarn (2), an outer parachute rope (3), a detachable rope buckle (4), an inner parachute rope (5), a protection yarn tape (6), a radiation reinforcement tape (7), a surrounding cloth (8), a blast bag (9), a top cloth (11) and a rope buckle lining tape (13); The lower end of the connecting rope (1) is connected to a metal ring, the upper end of the connecting belt (1) is connected to the lower end of the outer umbrella rope (3) and the umbrella rope protection yarn (2), 6 to 12 wedge-shaped mesh cloths are spliced together by sewing to form the umbrella rope protection yarn (2), the umbrella rope protection yarn (2) wraps the outer umbrella rope (3) inside the stable umbrella, all splicing places use radiation reinforcement belts (7) to limit and reinforce the umbrella rope protection yarn (2), the short side of the wedge-shaped mesh cloth faces downward, and the lower edge of the umbrella rope protection yarn (2) is sewed and connected to the connecting rope (1); 6 to 18 square silk cloths are spliced together by sewing to form a surrounding width (8), the lower end of which is The top panel (11) is connected to the upper end of the umbrella rope protection yarn (2) by lock stitching, and a protection yarn tape (6) is sewn at the connection point for limiting and reinforcing; 6 to 18 wedge-shaped silk cloths and a single round silk cloth are spliced together by a stitching method to form a top panel (11), the long side of the wedge-shaped silk cloth faces downward, and the top panel (11) is connected to the upper end of the surrounding panel (8) by lock stitching, and the short side of the wedge-shaped silk cloth faces upward; a rope buckle lining tape (13) is sewn at the splicing point of the radiation reinforcement belt (7) and the surrounding panel (8), and the rope buckle lining tape (13) is fastened and sewn to one end of the inner umbrella rope (5); the number of the inner umbrella rope (5) is the same as the number of the rope buckle lining tape (13), and the other end of the inner umbrella rope (5) is connected to the detachable rope buckle (4).
2. The stabilizing and guiding parachute device for two persons according to claim 1, characterized in that: The detachable cord buckle (4) is also connected to the outer coat protection bag (12), and one end of the detachable cord buckle (4) is connected to the lining belt of the connecting belt (1).
3. The stabilizing and guiding parachute device for two persons according to claim 2, characterized in that: Preferably, 6 to 12 cord lock lining tapes (13) are evenly distributed at the connection between the umbrella cord protection yarn (2) and the surrounding width (8).
4. The stabilizing and guiding parachute device for two persons according to claim 1, characterized in that: The stable parachute state area is 1.5~8m 2 , after the parachute is transformed into a guide parachute, the area is 0.75~2m 2 The ratio of the area in the stable parachute state to the area in the guiding parachute state is preferably 1.5:1 to 4:
1. The canopy is an inverted truncated cone type parachute, which is composed of 6 to 18 surrounding panels (8) and a top panel (11) sewn together, and is longitudinally reinforced by a radiation reinforcement belt (7).
5. The stabilizing and guiding parachute device for two persons according to claim 1, characterized in that: 4 to 10 air blowing bags (9) are sewn at the top opening of the top panel (11).
6. The stabilizing and guiding parachute device for two persons according to claim 1, characterized in that: The connecting belt (1) is preferably 2m to 8m in length and 10 to 60mm in width.
7. The stabilizing and guiding parachute device for a double-person parachute according to claim 1, characterized in that: An opening reinforcement band (10) is used at the opening at the upper end of the top panel (11) to reinforce and limit the opening.
8. The stabilizing and guiding parachute device for two persons according to claim 1, characterized in that: The number of the outer parachute ropes (3) is 6 to 12.