CN112977843B

CN112977843B - Parachute device and unmanned aerial vehicle

Info

Publication number: CN112977843B
Application number: CN202110497071.7A
Authority: CN
Inventors: 毛一年; 赵龙智; 姜欣宏; 周东岳; 纪秀东; 高焓; 初征; 禹剑
Original assignee: Beijing Sankuai Online Technology Co Ltd
Current assignee: Beijing Sankuai Online Technology Co Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-07-30
Anticipated expiration: 2041-05-07
Also published as: CN112977843A

Abstract

The utility model relates to a parachute device and unmanned aerial vehicle, this parachute device include umbrella storehouse, parachute and gas generator, the umbrella storehouse includes integrated into one piece's storehouse body and cang gai, the storehouse body with the junction of cang gai is formed with fracture induction groove, the parachute passes through the cang gai restraint is in the umbrella storehouse, gas generator sets up in the umbrella storehouse and with the external control ware signal links to each other, is used for the response the signal of external control ware with produce high-pressure gas in the umbrella storehouse, the induced groove structure of fracture is for can fracture under the high-pressure gas effect, so that the cang gai breaks away from thereby the release of storehouse body the parachute. The storehouse body and the cang gai of umbrella storehouse are integrated into one piece, and the leakproofness is strong, and protection level is high, is favorable to isolated external raise dust and rainwater, avoids inner structure to be polluted or corrode to improve the success rate that the parachute device launched, reduce the injury that unmanned aerial vehicle falls and bring.

Description

Parachute device and unmanned aerial vehicle

Technical Field

The utility model relates to an unmanned aerial vehicle safety technology field specifically, relates to a parachute device and unmanned aerial vehicle.

Background

Unmanned aerial vehicle is one of present research focus, has extensive usage in trades such as unmanned delivery, survey and drawing and scientific research. However, under the influence of various factors, the unmanned aerial vehicle has the risk of probably falling, when the unmanned aerial vehicle falls because of the trouble in personnel intensive area, causes accident easily. In order to slow down unmanned aerial vehicle's the speed of falling, can set up the parachute device on unmanned aerial vehicle usually for provide the buffering for unmanned aerial vehicle. But the overall structure of current parachute device is complicated, and ejection time is long, and the problem of parachute device ejection trouble can appear occasionally, has increased the risk index that unmanned aerial vehicle falls.

Disclosure of Invention

The utility model aims at providing a parachute device and unmanned aerial vehicle, this parachute device launch the success rate height, and launch the response time length.

In order to realize above-mentioned purpose, this disclosure provides a parachute device, including umbrella storehouse, parachute and gas generator, the umbrella storehouse includes integrated into one piece's storehouse body and cang gai, the storehouse body with the junction of cang gai is formed with fracture induction groove, the parachute passes through the cang gai restraint is in the umbrella storehouse, gas generator sets up in the umbrella storehouse and with the external control ware signal links to each other, is used for the response the signal of external control ware with produce high-pressure gas in the umbrella storehouse, the induced groove structure of fracture is for can fracture under the high-pressure gas effect, so that the cang gai breaks away from thereby the release of storehouse body the parachute.

Optionally, the fracture inducing groove has a triangular cross section, the fracture inducing groove comprises a first side wall and a second side wall, and an included angle between the first side wall and the second side wall ranges from 30 ° to 60 °.

Optionally, the ratio of the structural thickness of the fracture inducing groove to the thickness of the bin cover is 0.1-0.4, and the ratio of the structural thickness of the fracture inducing groove to the thickness of the bin body is 0.1-0.4.

Optionally, the umbrella bin further comprises a base, the bin body is in a cylindrical shape with one open end and one closed end, the open end of the bin body is detachably connected with the base, and the closed end of the bin body is the bin cover.

Optionally, the base includes a bottom plate and a connecting portion, the connecting portion is formed into a ring shape protruding from the surface of the bottom plate and is matched with the shape of the opening end of the bin body, a plurality of first mounting holes are circumferentially arranged at intervals of the connecting portion, a second mounting hole corresponding to the first mounting hole in a one-to-one manner is formed in the opening end of the bin body, and the first mounting hole and the second mounting hole are fastened and matched through a first fastener to fix the connecting portion inside the opening end of the bin body.

Optionally, a stopping flange is further formed on the base, the stopping flange is formed on the outer side of the connecting portion, and the end face of the opening end of the bin body is attached to the stopping flange.

Optionally, the parachute comprises a parachute body and a parachute rope, one end of the parachute rope is connected with the cabin body, the other end of the parachute rope is connected with the parachute body, the parachute device further comprises a pull rope, one end of the pull rope is connected with the cabin cover, and the other end of the pull rope is connected with the parachute body.

Optionally, the gas generator comprises a base, a housing, a trigger electrode and a medicament pack, the base is fixed in the umbrella bin, the housing is mounted on the base, the trigger electrode and the medicament pack are adjacently arranged in the housing, the trigger electrode is provided with a pin extending out of the housing, and the pin is connected with the external controller through signals.

Optionally, an inlet and an outlet are formed at one end of the housing close to the base, the trigger electrode is an electrode plug, the electrode plug seals and blocks the medicament in the housing from the inlet and the outlet, a through hole adapted to the inlet and the outlet is formed in the umbrella bin, and a pin of the electrode plug is led out from the inlet and the outlet and penetrates through the through hole to the outer side of the umbrella bin.

Optionally, the base forms the tube-shape, the one end of base is formed with mounting flange, and the other end is formed with the limit flange, mounting flange follows the radial outside extension of base arranges, the limit flange is followed the radial inside extension of base arranges, the lateral wall of housing is formed with the shoulder that the cross section increases, the base cover is established on the housing, the limit flange with the cooperation of axial backstop is followed to the shoulder, be provided with a plurality of third mounting holes along the circumference interval on the mounting flange, be formed with on the umbrella storehouse with the fourth mounting hole of third mounting hole one-to-one, the third mounting hole with the fourth mounting hole passes through the fastening of second fastener and links to each other, with the base is fixed in the umbrella storehouse.

Another aspect of the present disclosure also provides a drone including a parachute apparatus as described above.

Through above-mentioned technical scheme, the parachute of the parachute device in the embodiment of this disclosure is accomodate in the umbrella storehouse, and the storehouse body and the cang gai in umbrella storehouse are integrated into one piece, do not have the gap between storehouse body and the cang gai promptly, and the leakproofness is strong, and protection level is high, is favorable to isolated external raise dust and rainwater, avoids inner structure to be polluted or corrode, ensures that inner structure normally falls to work to improve the success rate that the parachute device launches, reduce the injury that unmanned aerial vehicle brought. And, be provided with fracture induction groove between storehouse body and the storehouse lid, can the quick response when the inside atress in umbrella storehouse, need not control device and participate in, avoided the fault rate that control device causes, simple structure is reliable. This parachute device's gas generator can respond rapidly and produce a large amount of high-pressure gas after receiving external control ware's signal, and response speed is fast, can reduce parachute pop-up time by a wide margin, can improve the speed reduction effect to the unmanned aerial vehicle of low-altitude flight.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic view of the overall structure of a parachute apparatus in an embodiment of the present disclosure;

FIG. 2 is an exploded schematic view of a parachute assembly in an embodiment of the present disclosure;

FIG. 3 is an exploded schematic view of a gas generator in an embodiment of the disclosure;

FIG. 4 is a longitudinal cross-sectional view of the parachute apparatus in the embodiment of the present disclosure;

fig. 5 is a partially enlarged view of the area a in fig. 4;

fig. 6 is a partially enlarged view of a region B in fig. 4;

fig. 7 is a partially enlarged view of a region C in fig. 4;

FIG. 8 is a schematic view of the mounting of the gas generator to the base of the umbrella housing in an embodiment of the disclosure.

Description of the reference numerals

1. An umbrella chamber; 11. a bin body; 111. an open end; 112. a closed end; 113. a second mounting hole; 12. a bin cover; 13. a fracture inducing groove; 131. a first side wall; 132. a second side wall; 14. a base; 141. a base plate; 142. a connecting portion; 143. a first mounting hole; 144. a stop flange; 145. a fourth mounting hole; 146. a through hole; 15. a first fastener; 2. a gas generator; 21. a base; 211. installing a flange; 212. a limiting flange; 213. a third mounting hole; 22. a housing; 221. a shaft shoulder; 23. a trigger electrode; 231. a pin; 24. a medicament pack; 25. a second fastener.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, without being stated to the contrary, the use of the directional words such as "up and down" refers to the conventional direction or position relationship of the unmanned aerial vehicle when in use, and can be generally understood as up and down along the gravity direction; "inner and outer" refers to "inner and outer" relative to the contour of the component or structure itself. In addition, it is to be understood that the terms "first," "second," and the like are used for distinguishing one element from another, and are not necessarily order nor importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

The unmanned aerial vehicle is used as an important tool for low-altitude flight, and can perform various operations such as monitoring, shooting, carrying goods and the like; and the unmanned aerial vehicle can bring very serious incident when taking place to fall, for example self crash, injure the pedestrian or smash other objects, consequently can adopt the parachute to reduce the injury that unmanned aerial vehicle falls, but the phenomenon of parachute inefficacy still can not avoid in the practical application. The inventor of this application discovers, because there are raise dust, raindrop etc. in the unmanned aerial vehicle flight environment, gets into the umbrella storehouse that holds the parachute easily, leads to the inside jettison device inefficacy in umbrella storehouse to launch the trouble when unmanned aerial vehicle falls.

Based on this, the disclosed embodiment provides a parachute device, as shown in fig. 1 to 8, the parachute device includes a parachute cabin 1, a parachute and a gas generator 2, the parachute cabin 1 includes an integrally formed cabin body 11 and a cabin cover 12, a fracture inducing groove 13 is formed at a connection of the cabin body 11 and the cabin cover 12, the parachute is restrained in the parachute cabin 1 by the cabin cover 12, the gas generator 2 is disposed in the parachute cabin 1 and is in signal connection with an external controller for generating high-pressure gas in the parachute cabin 1 in response to a signal of the external controller, and the fracture inducing groove 13 is configured to be capable of being fractured by the high-pressure gas so that the cabin cover 12 is separated from the cabin body 11 to release the parachute.

The fracture inducing groove 13 is a groove provided to first break when the umbrella chamber 1 is stressed. The gas generator 2 is a device capable of rapidly generating a large amount of high-pressure gas upon receiving a trigger signal. The external controller may be a flight control system of the unmanned aerial vehicle, or may be an independent controller specially designed for the gas generator 2, which is not limited in this disclosure.

The working process of the parachute device is roughly as follows: when detecting unmanned aerial vehicle trouble and having the risk of falling, external control ware generates control command and triggers gas generator 2, and gas generator 2 produces a large amount of high-pressure gas under control command's trigger. At the moment, the pressure in the umbrella chamber 1 is rapidly increased and is higher than the external air pressure, and the fracture induction groove 13 on the umbrella chamber 1 is fractured under the action of high-pressure air, so that the chamber cover 12 is separated from the chamber body 11, and the restraint on the parachute is relieved. In the twinkling of an eye that cang gai 12 breaks away from, the high-pressure gas that gas generator 2 produced can produce the impact to the parachute, makes it deviate from storehouse body 11 and forms half-open state, and the parachute can expand completely when meetting the ascending air current of unmanned aerial vehicle tenesmus in-process to increase unmanned aerial vehicle tenesmic buoyancy slows down unmanned aerial vehicle tenesmus speed, reduces the loss that the drop brought.

Through above-mentioned technical scheme, the parachute of the parachute device in the embodiment of this disclosure is accomodate in umbrella storehouse 1, the storehouse body 11 and the cang gai 12 of umbrella storehouse 1 are integrated into one piece, do not have the gap between storehouse body 11 and the cang gai 12 promptly, the leakproofness is strong, protection level is high, be favorable to isolated external raise dust and rainwater, avoid inner structure contaminated or corruption, ensure that inner structure normally works, thereby improve the success rate that the parachute device launches, reduce the injury that unmanned aerial vehicle falls and brings. And, be provided with fracture induction groove 13 between storehouse body 11 and storehouse lid 12, can react fast when the inside atress in umbrella storehouse 1, need not control device to participate in, avoided the fault rate that control device causes, simple structure is reliable. This parachute device's gas generator 2 can respond rapidly and produce a large amount of high-pressure gas after receiving external control ware's signal, and response speed is fast, can reduce parachute pop-up time by a wide margin, can improve the speed reduction effect to the unmanned aerial vehicle of low-altitude flight.

In the embodiment of the present disclosure, as shown in fig. 2 and 5, the cross section of the fracture inducing groove 13 on the umbrella cabin 1 is triangular, and the fracture inducing groove 13 with such a configuration is easy to generate stress concentration at the corner point of the triangle, so that the fracture inducing groove 13 is cracked and rapidly broken before other structures, and the triangular design can improve the fracture speed of the fracture inducing groove 13.

The cross section of the breakage-inducing groove 13 in other embodiments of the present disclosure may be configured in any other suitable shape, and the present disclosure is not limited to the triangular cross section, for example, the cross section of the breakage-inducing groove 13 may be configured in a rectangular shape, a circular arc shape, or any other suitable shape.

Further, the fracture inducing groove 13 includes a first sidewall 131 and a second sidewall 132, and an included angle between the first sidewall 131 and the second sidewall 132 ranges from 30 ° to 60 °. In this angle range, the joint of the first and

second side walls

131 and 132 of the breakage-inducing groove 13 is more likely to cause a crack, thereby being more likely to be broken. Further, the cross section of the fracture inducing groove 13 may be configured in any suitable triangle, for example, a right-angled triangle in which the first side wall 131 is a hypotenuse and the second side wall 132 is a square, or an isosceles triangle in which the first side wall 131 and the second side wall 132 are both hypotenuse, etc., which is not limited by the present disclosure.

The structural thickness design at the fracture inducing groove 13 needs to be satisfied: minimum intensity can bear unmanned aerial vehicle's vibration and unexpected impact, and maximum intensity can produce the fracture after 1 inside pressure in umbrella storehouse reaches the default. Illustratively, the ratio of the structural thickness of the fracture inducing groove 13 to the thickness of the bin cover 12 is 0.1 to 0.4, and the ratio of the thickness of the fracture inducing groove 13 to the structural thickness of the bin body 11 is 0.1 to 0.4. In this scope, unmanned aerial vehicle's vibration can be resisted to fracture induction groove 13, and can fracture fast after 1 inside high-pressure gas that produces in umbrella storehouse, makes cang gai 12 break away from storehouse body 11.

For example, the thicknesses of the bin cover 12 and the bin body 11 can be consistent, for example, 1 mm, and the structural thickness of the fracture inducing groove 13 can be 0.1-0.4 mm; in another example, the thicknesses of the bin cover 12 and the bin body 11 may not be the same, for example, the thickness of the bin cover 12 is 1 mm, the thickness of the bin body 11 is 1.2 mm, the thickness of the structure at the fracture inducing groove 13 may be 0.4 mm, etc., and the specific thickness of the umbrella bin 1 is not limited by the present disclosure.

The breakage-inducing groove 13 is an annular groove formed in the umbrella case 1 and arranged around the edge of the case lid 12. In addition, the fracture inducing groove 13 may be opened from the outer side of the umbrella chamber 1, or may be opened from the inner side of the umbrella chamber 1, which is not limited in the present disclosure.

In the embodiment of the present disclosure, as shown in fig. 1 and 2, the umbrella chamber 1 further includes a base 14, the chamber body 11 is configured as a cylinder with one open end and one closed end, the open end 111 of the chamber body 11 is detachably connected to the base 14, and the closed end 112 of the chamber body 11 is configured as a chamber cover 12. The bin body 11 is detachably connected with the base 14, so that the parachute can be conveniently installed in the bin body 11; and the closed end 112 of the cartridge body 11 is configured as the cartridge cover 12, i.e., the cartridge body 11 and the cartridge cover 12 are respectively located on different planes, so that it is convenient to distinguish the position of the cartridge cover 12 and to machine the fracture inducing groove 13 when assembling. Moreover, the bin cover 12 and the base 14 are respectively arranged at two opposite ends of the bin body 11, and when the bin cover 12 is positioned above, the base 14 is positioned below the bin body 11, so that the dustproof and waterproof effects of the umbrella bin 1 can be guaranteed.

In other embodiments of this disclosure, storehouse body 11 also can be constructed for a plurality of suitable shapes such as ellipsoid, cuboid, sphere, cang gai 12 can set up at the top or the lateral part of storehouse body 11, when cang gai 12 breaks away from storehouse body 11, the parachute pops out and becomes half the state of expansion from the top or the lateral part of storehouse body 11 under high-pressure gas's impact, after the parachute leaves storehouse body 11, the meeting air current in unmanned aerial vehicle tenesmus acts on the lower complete expansion down to can slow down unmanned aerial vehicle falling speed.

Preferably, the bin cover 12 is provided on the top of the bin body 11, so that the smoothness of parachute deployment can be improved.

In the embodiment of the present disclosure, as shown in fig. 2, 6 and 8, the base 14 includes a bottom plate 141 and a connecting portion 142, the connecting portion 142 is formed in a ring shape protruding from the surface of the bottom plate 141 and is matched with the shape of the open end 111 of the cartridge body 11, a plurality of first mounting holes 143 are circumferentially arranged at intervals of the connecting portion 142, the open end 111 of the cartridge body 11 is formed with second mounting holes 113 corresponding to the first mounting holes 143 one to one, and the first mounting holes 143 and the second mounting holes 113 are tightly fitted by first fasteners 15 to fix the connecting portion 142 inside the open end 111 of the cartridge body 11. The bottom plate 141 of the base 14 is used for blocking the open end 111 of the chamber body 11, and after the parachute is accommodated in the chamber body 11, the bottom plate 141 can ensure that the whole parachute chamber 1 is constructed into a sealed space, so that the high-pressure gas can generate pressure on the inner wall of the parachute chamber 1 enough to separate the chamber cover 12 from the chamber body 11. Moreover, the connecting part 142 of the base 14 has a simple structure and is convenient to install, and the connecting part 142 and the opening end 111 of the bin body 11 are overlapped together, so that the connecting part and the bin body have good sealing performance after being fixed.

It should be understood that the above-mentioned ring shape of the connecting portion 142 of the base 14 can be understood as a broad ring shape, for example, a circular shape, a rectangular shape, a triangular shape or other special closed ring shape, and the base 14 can be disposed inside or outside the open end 111 of the cartridge body 11, which is not limited by the present disclosure.

The number of the first mounting holes 143 may be four, and the first mounting holes 113 are respectively arranged on the sidewall of the opening end 111 of the umbrella chamber 11 at equal intervals along the circumferential direction, and the second mounting holes 113 are also four, and are respectively arranged on the connecting portion 142 at equal intervals along the circumferential direction, so that after the interior of the umbrella chamber 1 is filled with high-pressure gas, the stress of the connecting portion 142 of the base 14 is uniform, and the phenomenon of overlarge local stress is avoided.

Optionally, in order to improve the sealing performance of the butt joint between the cartridge body 11 and the base 14, in an example of the present disclosure, a sealing ring (not shown in the figure) is further disposed on the first fastening member 15 to seal the gap between the first fastening member 15 and the first mounting hole 143 and the second mounting hole 113, respectively. In another example of the present disclosure, a sealing ring may be disposed on the connecting portion 142 of the base 14 to seal a gap between the connecting portion 142 and the sidewall of the cartridge body 11.

As shown in fig. 6 and 8, in the example where the connecting portion 142 is provided inside the open end 111 of the cartridge body 11, optionally, a stopper flange 144 is further formed on the base 14, the stopper flange 144 is formed outside the connecting portion 142, and the end surface of the open end 111 of the cartridge body 11 is arranged in abutment with the stopper flange 144. The stopper flange 144 can provide support for the end surface of the open end 111 of the cartridge body 11, and can further improve the sealing property of the cartridge body 11.

Above-mentioned parachute cabin 1 is used for accomodating the parachute and installs gas generator 2, and gas generator 2 can produce high-pressure gas and promote the parachute and pop out parachute cabin 1, provides the buffering for unmanned aerial vehicle. In order to realize above-mentioned function, in this disclosed embodiment, the parachute includes the umbrella body and the parachute line (not shown in the figure), and the one end and the base 14 of parachute line are connected, and the other end is connected with the umbrella body, and when the parachute popped out umbrella storehouse 1, the parachute line can be spacing near unmanned aerial vehicle with the umbrella body and provide buoyancy for unmanned aerial vehicle. In an example of the present disclosure, a pull ring may be further disposed on the base 14 of the umbrella chamber 1, and one end of the umbrella rope is connected to the pull ring, and the other end is connected to the umbrella body.

After cang gai 12 breaks away from storehouse body 11, in order to avoid cang gai 12 to fall from unmanned aerial vehicle, the parachute device still includes stay cord (not shown in the figure), and the one end and the cang gai 12 of stay cord are connected, and the other end is connected with the umbrella body, and like this, after the parachute struts, cang gai 12 can articulate and fall along with the parachute on the parachute together, avoids falling alone and injures the pedestrian by a crashing object. Wherein, the cover 12 can be made of light material such as plastic to reduce the influence of the cover 12 on the parachute.

As shown in fig. 1 to 4, 7 and 8, the umbrella chamber 1 is further provided with a gas generator 2, the gas generator 2 comprises a base 21, a cover 22, a trigger electrode 23 and a medicament package 24, the base 21 is fixed in the umbrella chamber 1, the cover 22 is mounted on the base 21, the trigger electrode 23 and the medicament package 24 are adjacently arranged in the cover 22, the trigger electrode 23 is provided with a pin 231 extending from the cover 22, and the pin 231 is in signal connection with an external controller. When the unmanned aerial vehicle is detected to have a falling risk, the external controller sends a trigger signal to the trigger electrode 23, for example, a high-level signal not lower than 5V can be sent to the pin 231 of the trigger electrode 23 through a signal line, and is transmitted to the trigger electrode 23 from the pin 231 to trigger the medicine bag 24, and the medicine in the medicine bag 24 generates a chemical reaction to generate a large amount of gas so as to increase the pressure in the umbrella cabin 1.

Wherein, the medicament that has put in the medicament package 24 and to be able to produce a large amount of gas, for example the mixture of the lead acid of stewart phenol, oxidant potassium perchlorate and antimony sulfide, this kind of medicament can produce a large amount of gas in the very short time (about 20 milliseconds) under trigger electrode 23's effect, and to a great extent has improved the ejection time of parachute, makes unmanned aerial vehicle can in time slow down under the effect of parachute, is favorable to the unmanned aerial vehicle's at low-altitude flight protection.

In the embodiment of the present disclosure, as shown in fig. 2 and 7, an access is formed at one end of the housing 22 close to the base 21, the trigger electrode 23 is an electrode plug, the electrode plug seals the medicine package 24 in the housing 22 from the access, a through hole 146 adapted to the access is formed on the umbrella chamber 1, and a pin 231 of the electrode plug is led out from the access and penetrates through the through hole 146 to the outside of the umbrella chamber 1. The electrode plug has the functions of packaging the medicament pack 24 and triggering the medicament pack 24, has a simple structure, and is beneficial to reducing the size of the gas generator 2. The inlet and outlet of the electrode plug are arranged corresponding to the through hole 146 of the umbrella chamber 1, so that the medicament bag 24 and the electrode plug can be separated and blocked outside the closed umbrella chamber 1 through the cover shell 22, and the sealing performance of the umbrella chamber 1 cannot be influenced.

Wherein, it should be understood that the aperture of the through hole 146 of the umbrella chamber 1 should be smaller than the aperture of the inlet and outlet of the cover 22, so as to prevent the cover 22 from being removed from the through hole 146 of the umbrella chamber 1.

In order to improve the stability of the installation of the cover 22 and the umbrella chamber 1, for example, as shown in fig. 3, 7 and 8, the base 21 is formed in a cylindrical shape, one end of the base 21 is formed with a mounting flange 211, the other end of the base 21 is formed with a limiting flange 212, the mounting flange 211 extends outward in the radial direction of the base 21, the limiting flange 212 extends inward in the radial direction of the base 21, the outer side wall of the cover 22 is formed with a shaft shoulder 221 with an increased cross section, the base 21 is sleeved on the cover 22, the limiting flange 212 is matched with the shaft shoulder 221 in an axial stop manner, a plurality of third mounting holes 213 are circumferentially arranged on the mounting flange 211 at intervals, fourth mounting holes 145 corresponding to the third mounting holes 213 are formed on the umbrella chamber 1, and the third mounting holes 213 are fastened and connected with the fourth mounting holes 145 through second fasteners 25 to fix the base 21 in the umbrella chamber 1.

According to above-mentioned structure, through setting up base 21, can strengthen the stability of being connected between housing 22 and the base 21, mounting flange 211 on the base 21 is fixed through second fastener 25 with umbrella storehouse 1, and convenient to detach housing 22 triggers the back at medicament package 24, and housing 22 probably damages, accessible this moment the base 21 of dismantlement only change housing 22 can, base 21 can used repeatedly many times, practices thrift the cost. The housing 22 is limited in the umbrella bin 1 through the limiting flange 212 on the base 21, for example, the base 14 of the umbrella bin 1 can be limited, the overall structure is simple, the base 21 can be limited from the periphery of the housing 22, the limiting effect is good, and the stability of the housing 22 is ensured.

In an example of the present disclosure, four third mounting holes 213 are provided on the mounting flange 211 of the base 21, and are respectively disposed at equal intervals along the circumferential direction of the mounting flange 211, and four fourth mounting holes 145 are provided on the base 14 of the umbrella chamber 1, and are respectively disposed at equal intervals along the circumference of the through hole 146, so that when the cover 22 is stressed, local stress concentration can be avoided.

Another embodiment of the present disclosure also provides a drone including the parachute apparatus as described above.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A parachute device is characterized by comprising a parachute cabin (1), a parachute and a gas generator (2), wherein the parachute cabin (1) comprises a cabin body (11) and a cabin cover (12) which are integrally formed, a fracture inducing guide groove (13) is formed at the joint of the cabin body (11) and the cabin cover (12), the parachute is restrained in the parachute cabin (1) through the cabin cover (12), the gas generator (2) is arranged in the parachute cabin (1) and is in signal connection with an external controller and used for responding to a signal of the external controller to generate high-pressure gas in the parachute cabin (1), and the fracture guide groove (13) is constructed to be capable of inducing fracture under the action of the high-pressure gas so that the cabin cover (12) is separated from the cabin body (11) to release the parachute;

the ratio of the structural thickness of the fracture inducing groove (13) to the thickness of the bin cover (12) is 0.1-0.4, and the ratio of the structural thickness of the fracture inducing groove (13) to the thickness of the bin body (11) is 0.1-0.4.

2. Parachute arrangement according to claim 1, characterized in that the break-inducing groove (13) has a triangular cross-section, the break-inducing groove (13) comprising a first side wall (131) and a second side wall (132), the angle between the first side wall (131) and the second side wall (132) being in the range of 30 ° -60 °.

3. A parachute arrangement according to claim 1, wherein the parachute magazine (1) further comprises a base (14), the magazine body (11) is configured as a tube having an open end and a closed end, the open end (111) of the magazine body (11) is detachably connected to the base (14), and the closed end (112) of the magazine body (11) is configured as the magazine cover (12).

4. The parachute device according to claim 3, wherein the base (14) includes a bottom plate (141) and a connection portion (142), the connection portion (142) is formed in a ring shape protruding from a surface of the bottom plate (141) and is fitted to a shape of the open end (111) of the cartridge body (11), a plurality of first mounting holes (143) are circumferentially provided at intervals of the connection portion (142), the open end (111) of the cartridge body (11) is formed with second mounting holes (113) corresponding to the first mounting holes (143) one by one, and the first mounting holes (143) and the second mounting holes (113) are tightly fitted by first fasteners (15) to fix the connection portion (142) inside the open end (111) of the cartridge body (11).

5. A parachute device according to claim 4, wherein a stopper flange (144) is further formed on the base (14), the stopper flange (144) being formed outside the connecting portion (142), an end surface of the open end (111) of the cartridge body (11) being arranged in abutment with the stopper flange (144).

6. A parachute device according to claim 1, wherein the parachute comprises a parachute body and a parachute cord, one end of the parachute cord is connected to the trunk body (11), the other end of the parachute cord is connected to the parachute body, the parachute device further comprises a pull cord, one end of the pull cord is connected to the trunk lid (12), and the other end of the pull cord is connected to the parachute body.

7. A parachute arrangement according to any one of claims 1 to 6, wherein the gas generator (2) comprises a base (21), a shroud (22), a trigger electrode (23) and a medicament pack (24), the base (21) being secured within the parachute magazine (1), the shroud (22) being mounted on the base (21), the trigger electrode (23) and the medicament pack (24) being arranged adjacent within the shroud (22), the trigger electrode (23) having a pin (231) extending from the shroud (22), the pin (231) being in signal communication with the external controller.

8. A parachute device according to claim 7, wherein an access opening is formed at one end of the housing (22) close to the base (21), the trigger electrode (23) is an electrode plug, the electrode plug seals the medicament pack (24) in the housing (22) from the access opening, a through hole (146) matched with the access opening is formed in the parachute cabin (1), and a pin (231) of the electrode plug is led out from the access opening and penetrates through the through hole (146) to the outer side of the parachute cabin (1).

9. A parachute device according to claim 7, wherein the base (21) is formed in a cylindrical shape, one end of the base (21) is provided with a mounting flange (211), the other end of the base is provided with a limiting flange (212), the mounting flange (211) extends along the radial direction of the base (21), the limiting flange (212) extends along the radial direction of the base (21), a shaft shoulder (221) with an enlarged cross section is formed on the outer side wall of the housing (22), the base (21) is sleeved on the housing (22), the limiting flange (212) is matched with the shaft shoulder (221) along an axial stop, the mounting flange (211) is provided with a plurality of third mounting holes (213) at intervals along the circumferential direction, and the umbrella chamber (1) is provided with fourth mounting holes (145) corresponding to the third mounting holes (213) in a one-to-one manner, the third mounting hole (213) and the fourth mounting hole (145) are fixedly connected through a second fastener (25) so as to fix the base (21) in the umbrella cabin (1).

10. A drone, characterized in that it comprises a parachute arrangement according to any one of claims 1-9.