A low cost inflatable parachute for small manned aircraft

Abstract

A low cost inflatable parachute for small manned aircraft is provided, which comprises a parachute and a launching device. The parachute comprises an air bag (1), an intake nozzle (2), a central vent hole (3), an parachute cloth (4) and an parachute rope (5). The launching device comprises a shell (6001), a parachute (6002), a gas generating device (6004), a movable cover plate (6004), an air duct (6005) and an isolation plate (6006). The gas generating device (6003) comprises a mounting part shell (7001), a controller (7002), an air bag generator (7003), an electric igniter (7004) and a storage battery (7005). The air bag (1) is composed of five layers of materials, and the parachute cloth (4) is composed of three layers of materials. The shell (6001), movable cover plate (6004), isolation plate (6006), parachute cloth (4), air bag (1) and parachute rope (5) are all made of carbon fiber material with high tensile strength, and therefore have the characteristics of high temperature resistance, high strength, light weight and low cost, and can be widely applied to the safety protection system of small manned aircraft.

Description

A low cost inflatable parachute for small manned aircraftTechnical Field

[0001] The invention belongs to the technical field of small manned aircraft, in particular to an inflatable low cost parachute.Background Art

[0002] With the continuous progress of science and technology, people's living standards are also constantly improving, so people have a higher pursuit of leisure life and travel quality, manned plane travel, flight experience, special scenic spots flight sightseeing and aerial photography have always been a pursuit of high-quality life. In recent years, with the rapid development of aircraft technology, various types of aircraft continue to emerge, especially the application of small manned aircraft, more and more become the focus of research.

[0003] The existing aircraft are mainly divided into two categories: fixed-wing and rotary-wing. The traditional fixed wing has the advantages of fast flight speed and low energy consumption, but the wing structure is not strong enough to be easily damaged, the takeoff and landing requirements are high, and the takeoff and landing distance are long.

[0004] Rotary-wing aircraft has the advantages of convenient take-off and landing, but it has some disadvantages such as high energy consumption, low safety factor, poor load capacity, slow horizontal flight speed and easy crash.

[0005] Most of the existing manned aircraft do not have emergency escape devices, when flying at high altitude, if there is an emergency situation, can not ensure the safety of personnel. Therefore, how to provide a manned aircraft that can enable personnel to escape safely is an urgent problem for technicians in this field.Technical Solution

[0006] In order to solve the above problems, the invention provides a low-cost inflatable parachute for a small manned aircraft, which aims to intelligently and automatically pop out an inflatable low-cost parachute on the top of a small manned aircraft to prevent the small manned aircraft from crashing or sinking into the water and effectively protect the safety of the manned.

[0007] The invention relates to a low cost inflatable parachute for small manned aircraft, which comprises an air bag, an air inlet nozzle, a central vent hole, an parachute cloth and a parachute rope. The air bag is composed of three evenly distributed weft airbags and eight warp airbags, and the bottom weft airbags are evenly distributed with eight air inlet nozzle, and the air inlet nozzle adopts an air valve structure; The inside of the air bag is an parachute cloth, the bottom of the parachute cloth is pierced with an parachute rope, and the top of the parachute cloth is provided with a central vent to control the speed of parachute descent.

[0008] Further, the air bag comprises an anti-corrosion layer, a flame retardant layer, a carbon fiber layer, an anti-rupture layer and a compressive layer from the outside in; The anti-corrosion layer is an epoxy resin paint with a thickness of 0.03-0.05 mm; The flame retardant layer is a non-toxic fireproof coating with a thickness of 0.03-0.05 mm; The carbon fiber layer is a carbon fiber cloth with a thickness of 0.05-0.1 mm; The anti-rupture layer is polyvinylidene chloride, with a thickness of 0.05-0.1 mm; The compressive layer is a polyurethane elastomer with a thickness of 0.05-0.1 mm.

[0009] Further, the parachute cloth comprises an anti-corrosion layer, a carbon fiber layer and an anti-cracking layer; The anti-corrosion layer is an epoxy resin paint with a thickness of 0.03-0.05 mm; The carbon fiber layer is a carbon fiber cloth with a thickness of 0.05-0.1 mm; The anti-rupture layer is polyvinylidene chloride with a thickness of 0.05-0.1 mm.

[0010] Further, the parachute rope comprises a carbon fiber cloth and a rope leather; The carbon fiber cloth is a carbon fiber cloth woven with equal spacing missing warp yarn and folded into a rope core; The rope skin is coated with the outer part of the rope core by the high-speed circular braid of the tapefibre filament.

[0011] Further, a launching device of the low cost inflatable parachute for small manned aircraft comprises a shell, a parachute, a gas generating device, a movable cover plate, an airway and an isolation plate; The parachute is tightly folded in the shell, and the bottom eight air inlet nozzle of the parachute is connected with the airway through the inflation nozzle and the air valve, and the other end of the airway is connected with the gas generating device, and the gas generating device and the parachute are separated into two independent Spaces through the isolation plate. The high pressure gas generated by the gas generating device is inflated through the gas nozzle of the airway and the air bag valve at the bottom of the parachute. After the air bag of the parachute is inflated, the pressure on the top of the shell is generated to push open the movable cover plate, and the parachute is continued to inflate the parachute air bag to open the parachute, and the parachute rises under the action of air after opening. Separate the air inlet nozzle of the air duct from the air valve of the air inlet nozzle of the air bag at the bottom of the parachute and stop the inflation.

[0012] Further, the gas generating device comprises a mounting part shell, a controller, an air bag generator, an electrical igniter and a storage battery. The air bag generator is fixed on the inner wall of the mounting part shell, and the electric igniter is installed in the middle of the air bag generator, and the air bag generator is communicated with the air valve of the parachute air bag inlet nozzle through the inflation nozzle of the airway; A storage battery is installed on the inner wall of the left side of the mounting part shell, and a controller is installed on the inner wall of the lower part of the mounting part shell. Preferably, the interior of the air bag generator is provided with an ignition agent, the upper part of the ignition agent is provided with a nitrogen generator, and the left and right sides of the nitrogen generator are installed with a filter. Preferably, the battery is electrically connected with the electrical igniter, sensor and controller respectively through the conduction line, and the controller is electrically connected with the electrical igniter and sensor. Preferably, the filter is symmetrically distributed in relation to the airbag generator, the nitrogen generator is filled between the filter, and the ignition agent is filled between the nitrogen generator and the electrical igniter.

[0013] Further, the sensor includes a height sensor for a small manned aircraft, an engine or motor sensor, etc. When a small manned aircraft falls, the altitude data changes too much, the controller judges it as abnormal, and sends out a parachute ejection signal; When the engine or motor of a small manned aircraft is abnormal, the sensor transmits the data to the controller and determines that it is abnormal, sending out the parachute signal. Further, after receiving the sensor signal, the controller sends an electric igniter ignition command to the air bag generator, the electric igniter ignites the ignition agent, the ignition agent fires the nitrogen generator, and a large amount of nitrogen is generated into the air bag of the parachute through the airway.

[0014] Further, the shell, movable cover plate, isolation plate and mounting part shell are made of carbon fiber material to reduce the overall weight of the parachute; Parachute cloth, parachute bag and parachute rope are all made of carbon fiber material with high tensile strength, which not only has light weight and high strength, but also can reduce the thickness of umbrella cloth and air bag and reduce the cost. At the same time, three latitude air bags and eight longitude air bags are evenly distributed on the outside of the parachute cloth, which can effectively prevent the parachute cloth from tearing and improve the strength of the parachute.Advantageous Effects

[0015] The invention has simple structure and convenient realization;

[0016] Under the safety concept of "life first, people first", the invention fills the gap of safety protection for small manned aircraft and provides an effective safety protection for small manned aircraft falling or sinking into water;

[0017] The invention adopts an inflatable parachute, which can quickly open the parachute and ensure the safety of a small manned aircraft;

[0018] The parachute cloth, air bag and parachute rope of the invention are made of carbon fiber material with high tensile strength, which not only has light weight but also has high strength, but also can reduce the thickness of the parachute cloth and air bag and reduce the cost; At the same time, three latitude air bags and eight longitude air bags are evenly distributed on the outside of the parachute cloth, which can effectively prevent the parachute cloth from tearing and improve the strength of the parachute.

[0019] The shell, movable cover plate and isolation plate of the invention are made of carbon fiber material and have the characteristics of high temperature resistance, high strength and light weight;Description of Drawings

[0020] In order to more clearly state the technical scheme of the embodiments of the invention, the following is a brief introduction of the drawings required to be used in the embodiments. Obviously, the following drawings only represent some embodiments of the invention, so they should not be regarded as a limitation on the scope. For ordinary technicians in the field, without creative labor, the following illustrations should not be regarded as a limitation on the scope. Other related drawings can also be obtained from these drawings.

[0021] FIG. 1 is a schematic diagram of the parachute structure of the invention;

[0022] FIG. 2 is the schematic diagram of the plane structure of the invention;

[0023] FIG. 3 is the schematic diagram of the airbag structure of the invention;

[0024] FIG. 4 is the parachute fabric structure diagram of the invention;

[0025] FIG. 5 is the structure diagram of the parachute rope the invention;

[0026] Figure 6 is a schematic diagram of the parachute launching device of the invention;

[0027] FIG. 7 is the structure diagram of the gas generating device of the invention;

[0028] FIG. 8 is a schematic diagram of the operating structure of the invention.Best Mode

[0029] The following is a clear and complete description of the technical scheme in the embodiment of the invention in combination with the drawings attached to the embodiment of the invention. Obviously, the embodiment described is only a part of the embodiment of the invention, but not the whole embodiment. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in the field without creative labor fall within the scope of protection of the invention.

[0030] It should be noted that all directional indications in embodiments of the invention (such as up, down, left, right, front, back...) It is only used to explain the relative position relationship and motion between the components in a specific attitude (as shown in the attached figure). If the specific attitude changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise expressly specified and limited, the terms "connection", "fixed", etc. shall be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or a whole; Can be mechanical connection, can also be electrical connection; It can be directly connected, it can be indirectly connected through an intermediate medium, it can be a connection within two components or an interaction between two components, unless otherwise explicitly defined. For ordinary skilled persons in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0032] In addition, descriptions in the present invention that refer to "first", "second", etc., are used for descriptive purposes only and are not to be understood as indicating or implying their relative importance or as implicitly indicating the quantity of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical schemes between the embodiments can be combined with each other, but must be based on the realization of ordinary technical personnel in the field. When the combination of technical schemes is contradictory or cannot be realized, it shall be considered that such combination of technical schemes does not exist and is not within the scope of protection required by the invention.Industrial Applicability1

[0033] As shown in FIG. 1-Fig. 2, discloses a low cost inflatable parachute for small manned aircraft, comprising an air bag 1, an intake nozzle 2, a central vent hole 3, an parachute cloth 4, and a parachute rope 5. The air bag 1 is composed of three evenly distributed weft airbags 1 and eight meridian airbags 1, and the bottom weft airbag 1 is evenly distributed with eight intake airbags 2. The air inlet nozzle 2 adopts an air valve structure; The inside of the air bag 1 is an parachute cloth 4, the bottom of the parachute cloth 4 is pierced with a parachute rope 5, and the top of the parachute cloth 4 is provided with a central vent hole 3 to control the parachute descent speed.Industrial Applicability2

[0034] As shown in Figure 3, further, the airbag 1 comprises an anti-corrosion layer 1001, a flame retardant layer 1002, a carbon fiber layer 1003, an anti-rupture layer 1004, and a compression layer 1005 from the outside in; The anti-corrosion layer 1001 is an epoxy resin paint with a thickness of 0.03-0.05 mm; The flame retardant layer 1002 is a non-toxic fireproof coating with a thickness of 0.03-0.05 mm; The carbon fiber layer 1003 is a carbon fiber cloth with a thickness of 0.05-0.1 mm; The anti-rupture layer 1004 is polyvinylidene chloride, with a thickness of 0.05-0.1 mm; The compressive layer 1005 is a polyurethane elastomer with a thickness of 0.05-0.1 mm.Industrial Applicability3

[0035] As shown in Figure 4, further, the parachute cloth 4 comprises an anti-corrosion layer 4001, a carbon fiber layer 4002, and an anti-rupture layer 4003; The anti-corrosion layer 4001 is an epoxy resin paint with a thickness of 0.03-0.05 mm; The carbon fiber layer 4002 is a carbon fiber cloth with a thickness of 0.05-0.1 mm; The anti-rupture layer 4003 is polyvinylidene chloride with a thickness of 0.05-0.1 mm.Industrial Applicability4

[0036] As shown in Figure 5, further, the parachute rope 5 comprises carbon fiber cloth 5001 and rope leather 5002; The carbon fiber cloth 5001 is a carbon fiber cloth woven with equal spacing missing warp yarn and folded into a rope core; The rope leather 5002 adopts a high-speed circular braid of a tapefibre filament to cover the outside of the rope core.Industrial Applicability5

[0037] Further, a launching device of the low cost inflatable parachute for small manned aircraft comprises a shell 6001, a parachute 6002, a gas generating device 6003, a movable cover plate 6004, an airway 6005 and an isolation plate 6006; The shell 6001 is tightly folded in the parachute 6002, the bottom eight air inlet nozzle of the parachute 6002 is connected with the airway 6005 through the inflation nozzle and the air valve, and the other end of the airway 6005 is connected with the gas generating device 6003. The gas generator 6003 and parachute 6002 are separated into two separate Spaces through the isolation plate 6006. The high pressure gas generated by the gas generating device 6003 is inflated through the inflation nozzle of the airway 6005 and the air bag valve at the bottom of the parachute 6002. After the air bag of the parachute 6002 is inflated, the pressure is generated on the top of the housing 6001 to push the movable cover plate 6004, and the air bag of the parachute 6002 is continued to inflate the air bag of the parachute 6002 and open the parachute 6002. Parachute 6002 opens and rises under the action of air, so that the air nozzle of the air duct 6005 and the air valve of the air bag inlet nozzle at the bottom of the parachute 6002 are separated and stop inflation.Industrial Applicability6

[0038] As shown in Figure 6-8, further, the gas generating device 6003 comprises a mounting shell 7001, a controller 7002, an air bag generator 7003, an electrical igniter 7004 and a battery 7005. The air bag generator 7003 is fixed on the inner wall of the mounting part shell 7001, and the electric igniter 7004 is installed in the middle of the air bag generator 7003. The air bag generator 7003 is communicated with the air valve of the air bag inlet nozzle of the parachute 6002 through the inflation nozzle of the airway 6005; A battery 7005 is installed on the inner wall of the left side of the mounting part shell 7001, and a controller 7002 is installed on the inner wall of the lower part of the mounting part shell 7001. Preferably, the interior of the air bag generator 7003 is provided with an ignition agent, the upper part of the ignition agent is provided with a nitrogen generator, and the left and right sides of the nitrogen generator are installed with a filter. Preferably, the battery 7005 is electrically connected to the electrical igniter 7004, the sensor 8001 and the controller 7002 by conducting wires, respectively, and the controller 7002 is electrically connected to the electrical igniter 7004 and the sensor 8001. Preferably, the filter is symmetrically distributed with respect to the airbag generator 7003, the nitrogen generator is filled between the filter, and the ignition agent is filled between the nitrogen generator and the electrical igniter 7004.

[0039] Further, the 8001 sensor includes a height sensor 8001 for a small manned aircraft, an engine or motor sensor 8001, etc. When a small manned aircraft falls, the altitude data changes too much, and the controller 8002 judges it as abnormal and sends out a parachute ejection signal; When the engine or motor of a small manned aircraft is abnormal, the sensor 8001 transmits the data to the controller 8002 and determines that it is abnormal, sending out the parachute signal. Further, after receiving the signal of sensor 8001, the controller 8002 sends an electric igniter ignition command to the airbag generator 8003, the electric igniter ignites the ignition agent, the ignition agent fires the nitrogen generator, and a large amount of nitrogen is generated into the airbag 8004 of the parachute through the airway.Industrial Applicability7

[0040] As shown in Figure 1-8, further, the shell 6001, movable cover plate 6004, isolation plate 6006 and mounting part shell 7001 are all made of carbon fiber material to reduce the overall weight of the parachute; Parachute cloth 4, parachute airbag 1 and parachute rope 5 are made of carbon fiber material with high tensile strength, which has light weight and high strength, and can reduce the thickness of parachute cloth 4 and airbag 1 to reduce the cost; At the same time, three latitude airbags 1 and eight longitude airbags 1 are evenly distributed on the outside of the parachute cloth 4, which can effectively prevent the parachute cloth 4 from tearing and improve the strength of the parachute.

[0041] The above is only the preferred industrial applicability of the invention, and does not therefore limit the scope of the patent of the invention. Under the premise of not deviating from the spirit and scope of the invention, the invention will also have various changes and improvements. Under the invention idea, the equivalent structure transformation made by the specification of the invention and the content of the drawings is used. Or directly / indirectly used in other related technical fields are included in the scope of patent protection of the invention.

Claims

1. A low cost inflatable parachute for small manned aircraft is characterized in that it comprises a parachute and a launching device;The parachute comprises an air bag (1), an air intake nozzle (2), a central air hole (3), an parachute cloth (4), and a parachute rope (5). The air bag (1) is composed of three evenly distributed weft airbags (1) and eight warp airbags (1). The bottom weft line airbag (1) evenly distributes eight air inlet nozzles (2), and the air inlet nozzles (2) all adopt an air valve structure; The inside of the air bag (1) is an parachute cloth (4), the bottom of the parachute cloth (4) is pierced with a parachute rope (5), and the top of the parachute cloth (4) is provided with a central vent hole (3) to control the speed of parachute descent;The launching device comprises a shell (6001), a parachute (6002), a gas generating device (6003), a movable cover plate (6004), an airway (6005) and an isolation plate (6006); The shell (6001) is tightly folded in the parachute (6002), the bottom eight air inlet nozzle of the parachute (6002) is connected with the airway (6005) through the inflation nozzle and the air valve, and the other end of the airway (6005) is connected with the gas generating device (6003). The gas generator (6003) and the parachute (6002) are separated into two separate Spaces through the isolation plate (6006). The high pressure gas generated by the gas generating device (6003) is inflated through the inflation nozzle of the airway (6005) and the air bag valve at the bottom of the parachute (6002). After the air bag of the parachute (6002) is inflated, the pressure is generated on the top of the shell (6001) to push the movable cover plate (6004). The parachute (6002) continues to inflate the air bag and open the parachute (6002), and the parachute (6002) rises under the action of air after opening, so that the inflation nozzle of the airway (6005) and the air valve of the air bag intake nozzle at the bottom of the parachute (6002) are separated and stop inflating.

2. According to claim 1, a low cost inflatable parachute for small manned aircraft is characterized in that the air bag (1) from the outside includes an anti-corrosion layer (1001), a flame retardant layer (1002), a carbon fiber layer (1003), an anti-rupture layer (1004), and a compression layer (1005); The anti-corrosion layer (1001) is an epoxy resin paint with a thickness of 0.03-0.05 mm; The flame retardant layer (1002) is a non-toxic fireproof coating with a thickness of 0.03-0.05 mm; The carbon fiber layer (1003) is a carbon fiber cloth with a thickness of 0.05-0.1 mm; The anti-rupture layer (1004) is polyvinylidene chloride, with a thickness of 0.05-0.1 mm; The compressive layer (1005) is a polyurethane elastomer with a thickness of 0.05-0.1 mm.

3. According to claim 1, a low cost inflatable parachute for small manned aircraft is characterized in that the parachute cloth (4) comprises an anti-corrosion layer (4001), a carbon fiber layer (4002), and an anti-rupture layer (4003); The anti-corrosion layer (4001) is an epoxy resin paint with a thickness of 0.03-0.05 mm; The carbon fiber layer (4002) is a carbon fiber cloth with a thickness of 0.05-0.1 mm; The anti-rupture layer (4003) is polyvinylidene chloride with a thickness of 0.05-0.1 mm.

4. According to claim 1, a low cost inflatable parachute for small manned aircraft is characterized in that: the parachute rope (5) includes carbon fiber cloth (5001), rope leather (5002); The carbon fiber cloth (5001) is a carbon fiber cloth woven with equal spacing missing warp yarn and folded into a rope core; The rope leather (5002) is coated with a high-speed circular braid of a tapefibre filament on the outside of the rope core.

5. According to claim 1, a low cost inflatable parachute for small manned aircraft is characterized in that the gas generating device (6003) comprises a mounting body (7001), a controller (7002), an air bag generator (7003), an electrical igniter (7004) and a battery (7005). The air bag generator (7003) is fixed on the inner wall of the mounting part shell (7001), the air bag generator (7003) is installed in the middle of the electric igniter (7004), the air bag generator (7003) through the gas nozzle of the airway (6005) and the air valve of the parachute (6002) air bag inlet nozzle is communicated with each other; A storage battery (7005) is installed on the inner wall of the left side of the mounting part shell (7001), and a controller (7002) is installed on the inner wall of the lower part of the mounting part shell (7001). Preferably, the interior of the air bag generator (7003) is provided with an ignition agent, the upper part of the ignition agent is provided with a nitrogen generator, and the left and right sides of the nitrogen generator are installed with a filter. Preferably, the battery (7005) is electrically connected to the electrical igniter (7004), the sensor (8001) and the controller (7002) by conducting wires, respectively, and the controller (7002) is electrically connected to the electrical igniter (7004) and the sensor (8001). Preferably, the filter is symmetrically distributed with respect to the airbag generator (7003), the nitrogen generator is filled between the filter, and the ignition agent is filled between the nitrogen generator and the electrical igniter (7004). Further, the (8001) sensor includes a height sensor (8001) for a small manned aircraft, an engine or motor sensor (8001), etc. When a small manned aircraft falls, the altitude data changes too much, and the controller (8002) judges it as abnormal and sends out a parachute ejection signal; When the engine or motor of a small manned aircraft is abnormal, the sensor (8001) transmits the data to the controller (8002) and determines that it is abnormal, sending out the parachute signal. Further, the controller (8002), after receiving the signal from the sensor (8001), sends an electrical igniter ignition command to the airbag generator (8003), the electric igniter ignites the ignition agent, the ignition agent fires the nitrogen generator, and a large amount of nitrogen is generated into the airbag of the parachute through the airway (8004).

6. According to claim 1, a low cost inflatable parachute for small manned aircraft is characterized in that the shell (6001), movable cover plate (6004), isolation plate (6006) and mounting part shell (7001) are all made of carbon fiber material to reduce the overall weight of the parachute; Parachute cloth (4), parachute air bag (1) and parachute rope (5) are all made of carbon fiber material with high tensile strength, which has light weight and high strength, and can also reduce the thickness of parachute cloth (4) and air bag (1) to reduce costs; At the same time, three latitude air bags (1) and eight longitude air bags (1) are evenly distributed on the outside of the parachute cloth (4), which can effectively prevent the parachute cloth (4) from tearing and improve the strength of the parachute.

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