Wind-resistant parachute

Abstract

The wind-resistant parachute comprises a parachute canopy, a plurality of parachute cords and a plurality of opening and closing pieces, a parachute top hole is formed in the parachute top of the parachute canopy, and a plurality of air inlets are formed in the parachute side portion of the parachute canopy; one end of each parachute cord is connected with the parachute bottom of the parachute canopy, and the other ends of the parachute cords are connected with one another; the opening and closing parts are arranged on the inner side of the canopy and correspond to the air inlets in a one-to-one mode, one end of each opening and closing part is connected with the canopy, when no strong wind exists, upward airflow on the inner side of the canopy pushes the other end of each opening and closing part to abut against an orifice of the corresponding air inlet, and when strong wind exists, the other end of each opening and closing part abuts against the orifice of the corresponding air inlet. And lateral airflow on the outer side of the canopy pushes the other end of the opening and closing piece to move away from an orifice of the air inlet. The wind-resistant parachute has the beneficial effect that the stability and reliability of the parachute in a strong wind environment can be effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of parachutes, and in particular to a wind-resistant parachute. Background Art

[0002] A parachute is a deployable aerodynamic decelerator that uses the principle of air resistance and is inflated relative to the movement of air. With the continuous development of parachute technology, the application field of parachutes is becoming wider and wider. It has been widely used in airborne airdrops, air suspension and deceleration, emergency rescue and aircraft recovery.

[0003] As a safety device, the continuous improvement of parachute design and manufacturing technology has always been the focus of the aviation and aviation equipment fields. With the rapid development of flight technology, the use environment and flight conditions of aircraft are becoming more and more complex, especially in strong wind weather conditions. Flight safety is particularly prominent. In this context, the design and application technology of wind-resistant parachutes is very critical.

[0004] Existing parachutes (such as a variable air permeability parachute disclosed in application number 202021920884.X) mainly rely on huge area and air resistance to slow down the descent speed, but in strong wind conditions, the airflow will give the parachute a lateral wind force, causing the parachute canopy to deform, thereby affecting the stability and reliability of the parachute. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and provide a wind-resistant parachute to solve the technical problems of low stability and reliability of parachutes in strong wind environments in the prior art.

[0006] In order to achieve the above technical objectives, the technical solution of the present invention provides a wind-resistant parachute, comprising: An umbrella canopy, wherein the top of the umbrella canopy is provided with an umbrella top hole, and the side of the umbrella canopy is provided with a plurality of air inlets; A plurality of parachute ropes, one end of each of the parachute ropes is connected to the bottom of the umbrella canopy, and the other ends of each of the parachute ropes are connected to each other; A plurality of opening and closing components are arranged on the inner side of the umbrella canopy and correspond to each of the air inlets one by one. One end of each of the opening and closing components is connected to the umbrella canopy. When there is no strong wind, the upward airflow inside the umbrella canopy pushes the other end of the opening and closing component to abut against the hole of the air inlet. When there is strong wind, the lateral airflow outside the umbrella canopy pushes the other end of the opening and closing component to move away from the hole of the air inlet.

[0007] Furthermore, each of the air inlets is distributed circumferentially on the side of the umbrella top hole.

[0008] Furthermore, each of the opening and closing parts includes a block and a plurality of connecting ropes, one end of each of the connecting ropes is fixedly connected to the umbrella canopy, and the other end of each of the connecting ropes is fixedly connected to the block. When there is no strong wind, the upward airflow on the inner side of the umbrella canopy pushes the block to abut against the opening of the air inlet. When there is strong wind, the lateral airflow on the outer side of the umbrella canopy pushes the block to move away from the opening of the air inlet.

[0009] Furthermore, each of the connecting ropes is distributed circumferentially on the side of the air inlet.

[0010] Furthermore, the blocking member is a blocking cloth.

[0011] Furthermore, the diameter of the baffle is greater than the diameter of the air inlet.

[0012] Furthermore, each of the opening and closing members also includes a wrapping belt, which is arranged around the outer side wall of the blocking cloth and is fixedly connected to the blocking cloth.

[0013] Furthermore, the wind-resistant parachute also includes a plurality of reinforcements, each of which is fixed to the outside of the canopy and corresponds one-to-one to each of the air inlets. A flow port is provided on the reinforcement, and the flow port is connected to the air inlet.

[0014] Furthermore, the reinforcement member is a reinforcement cloth.

[0015] Furthermore, the diameter of the flow opening is equal to the diameter of the air inlet.

[0016] Compared with the prior art, the beneficial effects of the present invention include: during the descent of the parachute, the canopy is fully inflated and there is no strong wind, the airflow flows from the bottom of the canopy to the top of the canopy, and slowly flows out from the hole in the top of the canopy to the outside of the canopy, thereby achieving the purpose of vertical deceleration. At this time, the upward airflow on the inside of the canopy pushes the other end of the opening and closing piece to abut against the hole of the air inlet, and the air inlet is in a closed state. When there is strong wind, the lateral airflow on the outside of the canopy pushes the other end of the opening and closing piece to move away from the hole of the air inlet, and the air inlet is in an open state. The lateral airflow enters the inside of the canopy and is converted into an ascending airflow, which greatly improves the wind resistance of the parachute. The wind-resistant parachute can effectively ensure the stability and reliability of the parachute in a strong wind environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a wind-resistant parachute provided by the present invention; Figure 2 yes Figure 1 A schematic diagram of the structure of an opening and closing member in a wind-resistant parachute; Figure 3 yes Figure 2 A side view of the opening and closing member in FIG. Figure 4 yes Figure 1 A schematic diagram of the structure of a reinforcement member in a wind-resistant parachute; Figure 5 It is a schematic diagram of the airflow structure of the parachute provided by the present invention during normal landing; Figure 6 It is a schematic diagram of the airflow structure of the parachute under the action of strong wind provided by the present invention; In the figure: 100 - canopy, 110 - hole on top of umbrella, 120 - air inlet, 200 - umbrella rope, 300 - opening and closing part, 310 - stopper, 320 - connecting rope, 330 - wrapping belt, 400 - reinforcement part, 410 - flow outlet. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0019] The present invention provides a wind-resistant parachute, the structure of which is as follows: Figure 1 - Figure 6 As shown, it includes an umbrella canopy 100, a plurality of umbrella ropes 200 and a plurality of opening and closing members 300, the top of the umbrella canopy 100 is provided with an umbrella top hole 110, and the side of the umbrella canopy 100 is provided with a plurality of air inlets 120; one end of each of the umbrella ropes 200 is connected to the bottom of the umbrella canopy 100, and the other ends of each of the umbrella ropes 200 are connected to each other; each of the opening and closing members 300 is arranged on the inner side of the umbrella canopy 100, and corresponds to each of the air inlets 120 one by one, and one end of each of the opening and closing members 300 is connected to the umbrella canopy 100, when there is no strong wind, the upward airflow inside the umbrella canopy 100 pushes the other end of the opening and closing member 300 to abut against the hole of the air inlet 120, and when there is strong wind, the lateral airflow outside the umbrella canopy 100 pushes the other end of the opening and closing member 300 to move away from the hole of the air inlet 120.

[0020] When in use, the other ends of each of the first parachute ropes 200 are connected to each other and fixed to the load. During the descent of the parachute, the canopy 100 is fully opened. When there is no strong wind, the airflow flows from the bottom of the canopy 100 to the top of the canopy 100, and slowly flows out from the top hole 110 to the outside of the canopy 100, so as to achieve the purpose of vertical deceleration. At this time, the upward airflow inside the canopy 100 pushes the other end of the opening and closing member 300 to abut against the hole of the air inlet 120, and the air inlet 120 is in a closed state. When there is strong wind, the lateral airflow outside the canopy 100 pushes the other end of the opening and closing member 300 to move away from the hole of the air inlet 120, and the air inlet 120 is in an open state. The lateral airflow enters the inside of the canopy 100 and is converted into an ascending airflow, which greatly improves the wind resistance of the parachute. The wind-resistant parachute can effectively ensure the stability and reliability of the parachute in a strong wind environment.

[0021] As a preferred embodiment, please refer to Figure 1 Each of the air inlets 120 is distributed circumferentially on the side of the umbrella top hole 110, so that the parachute has wind resistance when facing lateral winds of different wind directions. The size and number of the air inlets 120 can be adjusted according to the area of ​​the umbrella canopy 100, and the size and number of the opening and closing parts 300 can be adjusted accordingly.

[0022] As a preferred embodiment, please refer to Figure 2 and Figure 3 Each of the opening and closing members 300 includes a stopper 310 and a plurality of connecting ropes 320, one end of each of the connecting ropes 320 is fixedly connected to the canopy 100, and the other end of each of the connecting ropes 320 is fixedly connected to the stopper 310. When there is no strong wind, the upward airflow inside the canopy 100 pushes the stopper 310 to abut against the opening of the air inlet 120. When there is strong wind, the lateral airflow outside the canopy 100 pushes the stopper 310 away from the opening of the air inlet 120. When there is no strong wind, the airflow flows from the bottom of the canopy 100 to the top of the canopy 100. 00, and slowly flows out from the umbrella top hole 110 to the outside of the canopy 100, so as to achieve the purpose of vertical deceleration. At this time, the upward airflow inside the canopy 100 pushes the blocking member 310 to abut against the hole of the air inlet 120, and the air inlet 120 is in a closed state. When there is strong wind, the lateral airflow outside the canopy 100 pushes the blocking member 310 to move away from the hole of the air inlet 120, and the air inlet 120 is in an open state, and the lateral airflow enters the inside of the canopy 100 and is converted into an ascending airflow, which greatly improves the wind resistance of the parachute.

[0023] As a preferred embodiment, please refer to Figure 2Each of the connecting ropes 320 is distributed circumferentially on the side of the air inlet 120, so that the blocking member 310 can evenly withstand the lateral airflow.

[0024] As a preferred embodiment, the blocking member 310 is a blocking cloth, and the material used to produce the blocking cloth is the same as the material used to produce the umbrella canopy 100.

[0025] As a preferred embodiment, please refer to Figure 1 and Figure 2 The diameter of the blocking cloth is greater than the diameter of the air inlet 120 , so that the blocking cloth can abut against the opening of the air inlet 120 .

[0026] As a preferred embodiment, please refer to Figure 2 and Figure 3 Each of the opening and closing members 300 also includes a wrapping belt 330, which is arranged on the outer side wall of the blocking cloth and is fixed to the blocking cloth to wrap the edge of the blocking cloth to improve the strength of the blocking cloth.

[0027] As a preferred embodiment, please refer to Figure 1 and Figure 4 The wind-resistant parachute further includes a plurality of reinforcement members 400, each of which is fixedly mounted on the outside of the canopy 100 and corresponds one-to-one to each of the air inlets 120. A flow port 410 is provided on the reinforcement member 400, and the flow port 410 is connected to the air inlet 120. The reinforcement member 400 is used to reinforce the position of the air inlet 120.

[0028] As a preferred embodiment, the reinforcement member 400 is a reinforcement cloth.

[0029] As a preferred embodiment, please refer to Figure 1 and Figure 4 The diameter of the flow port 410 is equal to the diameter of the air inlet 120. If the flow port 410 is too small, the reinforcing cloth will block the lateral airflow. If the flow port 410 is too large, the lateral airflow will impact the canopy 100 at the edge of the air inlet 120.

[0030] In order to better understand the present invention, the following Figure 1 - Figure 6 The working principle of the technical solution of the present invention is described in detail: When in use, the other ends of each of the first parachute ropes 200 are connected to each other and fixed to the load. During the descent of the parachute, the canopy 100 is fully opened. When there is no strong wind, the airflow flows from the bottom of the canopy 100 to the top of the canopy 100, and slowly flows out from the top hole 110 to the outside of the canopy 100, so as to achieve the purpose of vertical deceleration. At this time, the upward airflow inside the canopy 100 pushes the baffle cloth to abut against the hole of the air inlet 120, and the air inlet 120 is in a closed state. When there is strong wind, the lateral airflow outside the canopy 100 pushes the baffle cloth to move away from the hole of the air inlet 120, and the air inlet 120 is in an open state. The lateral airflow enters the inside of the canopy 100 and is converted into an ascending airflow, which greatly improves the wind resistance of the parachute. The wind-resistant parachute can effectively ensure the stability and reliability of the parachute in a strong wind environment.

[0031] The wind-resistant parachute provided by the present invention has the following beneficial effects: (1) The parachute adopts a unique one-way air intake structure. The lateral airflow can only enter the inside of the parachute from the outside, but not from the inside. This design does not affect the original resistance characteristics of the parachute. (2) When there is no strong wind, the airflow flows from the bottom of the umbrella canopy 100 to the top of the umbrella canopy 100, and slowly flows out of the umbrella top hole 110 to the outside of the umbrella canopy 100, thereby achieving the purpose of vertical deceleration. At this time, the upward airflow inside the umbrella canopy 100 pushes the baffle to abut against the opening of the air inlet 120, and the air inlet 120 is in a closed state; (3) When there is strong wind, the lateral airflow outside the canopy 100 pushes the baffle to move away from the opening of the air inlet 120. The air inlet 120 is in an open state, and the lateral airflow enters the inside of the canopy 100 and is converted into an updraft, which greatly improves the wind resistance of the parachute. The wind-resistant parachute can effectively ensure the stability and reliability of the parachute in a strong wind environment.

[0032] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A wind-resistant parachute, characterized in that: include: An umbrella canopy, wherein the top of the umbrella canopy is provided with an umbrella top hole, and the side of the umbrella canopy is provided with a plurality of air inlets; A plurality of parachute ropes, one end of each of the parachute ropes is connected to the bottom of the umbrella canopy, and the other ends of each of the parachute ropes are connected to each other; A plurality of opening and closing components are arranged on the inner side of the umbrella canopy and correspond to each of the air inlets one by one. One end of each of the opening and closing components is connected to the umbrella canopy. When there is no strong wind, the upward airflow inside the umbrella canopy pushes the other end of the opening and closing component to abut against the hole of the air inlet. When there is strong wind, the lateral airflow outside the umbrella canopy pushes the other end of the opening and closing component to move away from the hole of the air inlet.

2. The wind-resistant parachute according to claim 1, characterized in that: Each of the air inlets is distributed circumferentially on the side of the umbrella top hole.

3. The wind-resistant parachute according to claim 1, characterized in that: Each of the opening and closing parts includes a block and a plurality of connecting ropes, one end of each of the connecting ropes is fixedly connected to the umbrella canopy, and the other end of each of the connecting ropes is fixedly connected to the block. When there is no strong wind, the upward airflow on the inner side of the umbrella canopy pushes the block to abut against the opening of the air inlet. When there is strong wind, the lateral airflow on the outer side of the umbrella canopy pushes the block to move away from the opening of the air inlet.

4. The wind-resistant parachute according to claim 3, characterized in that: Each of the connecting ropes is distributed circumferentially on the side of the air inlet.

5. The wind-resistant parachute according to claim 3, characterized in that: The blocking member is a blocking cloth.

6. The wind-resistant parachute according to claim 5, characterized in that: The diameter of the baffle is greater than the diameter of the air inlet.

7. The wind-resistant parachute according to claim 5, characterized in that: Each of the opening and closing parts also includes a wrapping belt, which is arranged around the outer side wall of the blocking cloth and is fixedly connected to the blocking cloth.

8. The wind-resistant parachute according to claim 1, characterized in that: It also includes a plurality of reinforcement pieces, each of which is fixedly arranged on the outside of the canopy and corresponds one-to-one to each of the air inlets. A flow port is provided on the reinforcement piece, and the flow port is connected to the air inlet.

9. The wind-resistant parachute according to claim 8, characterized in that: The reinforcing member is a reinforcing cloth.

10. The wind-resistant parachute according to claim 8, characterized in that: The diameter of the flow opening is equal to the diameter of the air inlet.

Images