A parafoil main parachute device suitable for high-altitude tandem skydiving
By designing a main wing parachute device suitable for high-altitude double parachute jumping, the elliptical wing structure and specific parachute rope and closure cloth design solves the problems of high-altitude double parachute jumping and long-distance glide capabilities, and achieves safe and efficient glide performance.
Patent Information
- Application Number
- CN202411977815.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-04
AI Technical Summary
The prior art is difficult to achieve double-person heavy skydiving under high altitude conditions and lacks long-distance gliding capabilities.
A main wing parachute device suitable for high-altitude double parachute jumping is designed, adopting an elliptical wing structure, air hole distribution and specific parachute rope and closure cloth design, combining a stable guide parachute and guide parachute connection rope to achieve efficient gliding and overload control.
The device can achieve heavy weight parachuting for two people under high altitude conditions and has long-distance gliding capabilities to ensure the safety and stable performance of the parachuting personnel.
Smart Images
Figure CN119749859A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of parachutes, and in particular relates to a wing parachute main parachute device suitable for high-altitude tandem skydiving. Background Art
[0002] The main difficulty of skydiving is the problem of large overload when opening the parachute. Due to the low air density at high altitudes, the canopy has a faster inflation speed at high altitudes, which leads to a greater overload when opening the parachute.
[0003] A parafoil is a lightweight, efficient, non-powered sports device used for gliding in real life. A parafoil usually consists of a guide parachute, canopy (upper and lower wing surfaces, ribs), closing cloth, parachute ropes, control belts and control ropes. It generates lift through the pressure difference between the upper and lower wing surfaces, thereby enabling the parachutist to glide in the air.
[0004] The tandem paragliders currently used in China are low-altitude paragliders with relatively low parachuting altitudes. They do not have the ability to glide long distances and cannot meet the requirements of tandem high-weight parachuting. Summary of the invention
[0005] The object of the present invention is to provide a parafoil main parachute device suitable for high-altitude tandem skydiving, wherein the parafoil main parachute device can realize high-altitude tandem heavy-weight skydiving and has a long-distance gliding capability.
[0006] The technical solution to achieve the purpose of the present invention is: a wing parachute main parachute device suitable for high-altitude tandem skydiving, including a stabilizing guide parachute, a guide parachute connecting rope, a canopy, a parachute rope, a closing cloth, a control belt and a control rope; one end of the parachute rope is connected to the canopy, and the other end passes through the closing cloth and then is connected to the control belt; one end of the control rope is connected to the control belt, and the other end passes through the closing cloth and is connected to the tail of the canopy; one end of the guide parachute connecting rope is connected to the stabilizing guide parachute, and the other end passes through the canopy and is connected to the closing cloth.
[0007] Furthermore, the upper surface of the canopy is an upper wing surface, and the lower surface is a lower wing surface, and the upper and lower wing surfaces are connected by ribs; the ribs connected to the umbrella ropes are load-bearing ribs, and the ribs not connected to the umbrella ropes are non-load-bearing ribs, and the space between the two load-bearing ribs is an air hole.
[0008] Furthermore, the canopy adopts an elliptical wing surface structure, and the middle of the upper wing surface and the lower wing surface are each provided with a circular hole, and the umbrella connecting rope is guided to pass through the circular holes of the upper and lower wing surfaces to be connected with the closing cloth.
[0009] Furthermore, the canopy has a wingspan of 10m to 11m, a chord length of 3.7m to 4m, an aspect ratio of 2.6 to 2.9, an area of 38m2 to 42m2, and from one side of the canopy, two air chambers form one air hole, and the air chambers are distributed as follows: 11 air holes and 22 air chambers; the canopy dimensions are as follows
[0010]
[0011] Among them, the ribs connect the upper and lower wing surfaces so that the canopy maintains the wing shape after inflating, and do not directly bear the transmission of aerodynamic force.
[0012] Reinforcing ribs: connect the upper and lower wing surfaces to ensure that the canopy has a certain wing shape after inflating, and at the same time transfer the aerodynamic force acting on the upper and lower wing surfaces to the sling through the parachute rope.
[0013] Side ribs: located at the wingtips on both sides of the wing surface, connecting the upper and lower wing surfaces at the wing tip position so that the canopy maintains the wing shape after inflating, and does not directly bear the transmission of aerodynamic force.
[0014] Furthermore, the umbrella rope is divided into four strands, which are passed through the umbrella rope air of the closing cloth in sequence; the guiding umbrella connecting rope passes through the through holes of the upper and lower wing surfaces and is connected with the connecting ring of the closing cloth.
[0015] Furthermore, the closing cloth includes a closing cloth main cloth, a fluffy ring body, a circular ring and a reinforcing belt; the closing cloth main cloth is the main structure of the closing cloth, and its appearance is a two-dimensional rectangle. The reinforcing belt surrounds the four sides of the closing cloth main cloth and is cross-connected at the four corners in an "X" shape. The fluffy ring body is a metal ring hole distributed at the four corners of the rectangular closing cloth main cloth. The circular ring is located at the center point of the closing cloth and is used to connect a stable guiding parachute.
[0016] Compared with the prior art, the present invention has the following significant advantages: the wing parachute main parachute device can realize high-altitude double-person heavy-weight skydiving and has the ability to glide over long distances. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a system composition diagram of the present invention.
[0018] Figure 2 This is a flattened diagram of the wing surface, A: span, B: chord length.
[0019] Figure 3 This is the distribution diagram of pores and fins.
[0020] Figure 4 This is the air chamber distribution diagram.
[0021] Figure 5 For closing cloth.
[0022] Figure 6 It is a schematic diagram of the umbrella canopy structure of the present invention. DETAILED DESCRIPTION
[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0024] Combination Figure 1The parafoil of the present invention comprises: a stabilizing guide parachute 1, a guide parachute connecting rope 7, a parachute canopy 2 (upper wing surface, lower wing surface, ribs), parachute ropes 3, a closing cloth 4, a control belt 5, a control rope 6 and a closing cloth 4. One end of the guide parachute connecting rope 7 is connected to the stabilizing guide parachute, and the other end passes through the wing surface and is connected to the closing cloth 4.
[0025] Combination Figure 2 In the figure, I is air hole I, II is air hole II, etc. The upper surface of the parafoil is the upper wing surface, and the lower surface of the parafoil is the lower wing surface. The upper and lower wing surfaces are connected by ribs. The ribs connected to the parachute rope 3 are load-bearing ribs, and the ribs not connected to the parachute rope 3 are non-load-bearing ribs. The space between the two load-bearing ribs is an air hole.
[0026] In this solution, the canopy adopts an elliptical wing surface structure. Compared with the traditional rectangular wing surface, the elliptical wing surface can provide greater lift and reduce drag, while improving flight stability and maneuverability. By optimizing the airflow distribution, the elliptical design reduces the vortex effect, improves the gliding performance and flight stability, and makes the parafoil fly more efficiently, safely and flexibly in the air. There is a circular hole in the middle of the upper and lower wing surfaces, which guides the parachute connecting rope 7 to pass through the circular hole of the lower wing surface and connect with the closing cloth 4.
[0027] Combination Figure 3 , Figure 4 , 1 is rib 1, 2 is rib 2, etc., from left to right in the figure are: air chamber 1 to air chamber 22. The wing parafoil has a wingspan of 10m to 11m, a chord length of 3.7m to 4m, an aspect ratio of 2.6 to 2.9, an area of 38m2 to 42m2, and the air chambers are distributed as follows: 11 air holes and 22 air chambers (starting from one side of the wing parafoil, two air chambers constitute one air hole). Figure 6 , see Table 1 for detailed dimensions.
[0028] Table 1 Detailed dimensions
[0029]
[0030] The canopy 2, the closing cloth 4 and the guide umbrella are coordinated in the following manner: the umbrella rope 3 is divided into 4 strands, which pass through the umbrella rope of the closing cloth 4 in the air in turn; the guide umbrella connecting rope 7 passes through the through holes of the upper and lower wing surfaces and is connected to the connecting ring of the closing cloth 4.
[0031] Combination Figure 5 The closing cloth 4 includes a closing cloth main cloth 8, a fluffy ring body 9, a circular ring 10 and a reinforcing belt 11; the closing cloth main cloth 8 is the main structure of the closing cloth 4, and its appearance is a two-dimensional rectangle. The reinforcing belt 11 surrounds the four sides of the closing cloth main cloth 8 and is cross-connected at the four corners in an "X" shape. The fluffy ring body 9 is a metal ring hole distributed at the four corners of the rectangular closing cloth main cloth 8. The circular ring 10 is located at the center point of the closing cloth 4 and is used to connect the stable guide parachute 1.
[0032] The actual size sample of this design has been verified by tandem skydiving, and its performance meets the design requirements, with easy operation, stable performance and high gliding performance. Theoretical calculation verification and actual use measurement have confirmed that the high-altitude parachute load of the parachute is within the human body's tolerance range, and the horizontal speed and vertical descent speed meet the weight requirements of tandem skydiving.
[0033] This scheme adopts the method of "connecting the closing cloth to the stable guide parachute", and uses the guide parachute connecting rope to connect the closing cloth and the stable guide parachute. The closing cloth is affected by the airflow in the air, and it has a certain degree of resistance, which has a certain limit on the opening and inflation speed of the canopy. Under the pulling force of the stable guide parachute, the limiting effect of the closing cloth on the inflation of the canopy will be further strengthened, and it has a better high-altitude parachute opening overload control effect. Through the above method, the wing parachute of this scheme has better high-altitude adaptability.
Claims
1. A parafoil main parachute device suitable for high-altitude tandem skydiving, characterized by: The invention comprises a stabilizing guide parachute (1), a guide parachute connecting rope (7), a parachute canopy (2), a parachute rope (3), a closing cloth (4), a control belt (5) and a control rope (6); one end of the parachute rope (3) is connected to the parachute canopy (2), and the other end passes through the closing cloth (4) and is connected to the control belt (5); one end of the control rope (6) is connected to the control belt (5), and the other end passes through the closing cloth (4) and is connected to the tail of the parachute canopy (2); one end of the guide parachute connecting rope (7) is connected to the stabilizing guide parachute (1), and the other end passes through the parachute canopy (2) and is connected to the closing cloth (4).
2. The parafoil main parachute device suitable for high-altitude tandem skydiving according to claim 1, characterized in that: The upper surface of the umbrella canopy (2) is an upper wing surface, and the lower surface is a lower wing surface, and the upper and lower wing surfaces are connected by ribs; the ribs connected to the umbrella rope (3) are load-bearing ribs, and the ribs not connected to the umbrella rope are non-load-bearing ribs, and the space between the two load-bearing ribs is an air hole.
3. The parafoil main parachute device suitable for high-altitude tandem skydiving according to claim 1, characterized in that: The umbrella canopy (2) adopts an elliptical wing surface structure, and the middle of the upper wing surface and the lower wing surface are each provided with a circular hole, and the umbrella connecting rope (7) is guided to pass through the circular holes of the upper and lower wing surfaces to be connected with the closing cloth (4).
4. The parafoil main parachute device suitable for high-altitude tandem skydiving according to claim 1, characterized in that: The canopy (2) has a wingspan of 10m to 11m, a chord length of 3.7m to 4m, an aspect ratio of 2.6 to 2.9, and an area of 38m 2 ~42m 2 , starting from one side of the umbrella canopy (2), two air chambers form one air hole, and the air chambers are distributed as follows: 11 air holes 22 air chambers; the dimensions of the umbrella canopy (2) are as follows 5. The parafoil main parachute device suitable for high-altitude tandem skydiving according to claim 1, characterized in that: The umbrella rope (3) is divided into four strands, which are passed through the umbrella rope air of the closing cloth (4) in sequence; the guiding umbrella connecting rope (7) passes through the through holes of the upper and lower wing surfaces and is connected to the connecting ring of the closing cloth (4).
6. The parafoil main parachute device suitable for high-altitude tandem skydiving according to claim 1, characterized in that: The closing cloth (4) comprises a closing cloth main cloth (8), a fluff ring body (9), a circular ring (10) and a reinforcing belt (11); the closing cloth main cloth (8) is the main structure of the closing cloth (4) and has a two-dimensional rectangular shape; the reinforcing belt (11) surrounds the four sides of the closing cloth main cloth (8) and is cross-connected at the four corners in an "X" shape; the fluff ring body (9) is a metal ring hole distributed at the four corners of the rectangular closing cloth main cloth (8); the circular ring (10) is located at the center point of the closing cloth (4) and is used to connect the stabilizing guide parachute (1).