WO2019127351A1

WO2019127351A1 - Parachute and unmanned aerial vehicle having same

Info

Publication number: WO2019127351A1
Application number: PCT/CN2017/119791
Authority: WO
Inventors: 符石浩; 王洪涛; 张学良
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2019-07-04
Also published as: CN109071028B; CN109071028A

Abstract

A parachute (200) and an unmanned aerial vehicle having same. The parachute (200) comprises a cylinder (1), a parachute body (2) received in the cylinder (1), and a power mechanism (3) and a trigger mechanism (4) cooperating with the power mechanism (3) that are disposed at the bottom portion of the cylinder (1). An opening (11) is provided on the top of the cylinder (1); the parachute (200) further comprises a waterproofing film cover (5) for covering the opening (11), and a piercing member (6) disposed on the side of the parachute body (2) facing the waterproof film cover (5) for cooperating with the waterproof film cover (5); the trigger mechanism (4) is used for triggering the power mechanism (3) to work so that the power mechanism (3) pushes the parachute body (2) to move toward the opening (11); the parachute body (2) drives the piercing member (6) to move toward the waterproof film cover (5) to pierce the waterproof film cover (5) such that both the parachute body (2) and the piercing member (6) are ejected out of the cylinder (1) from the opening (11). The parachute (200) has a simple structure, low costs, and good consistency during use, and can minimize damages to the unmanned aerial vehicle in falling, especially reducing the risk of third-party property loss caused by the falling of an unmanned aerial vehicle.

Description

Parachute and drone with parachute

Technical field

The invention relates to the field of protection of drones, in particular to a parachute and a drone with a parachute (English abbreviation: UAV, English full name: Unmanned Aerial Vehicle).

Background technique

With the popularity of drones, the flight safety of drones is also well received. During the flight of the drone, if there is an abnormal situation and it falls automatically, if it is not further processed, it may cause damage to the drone or damage to the third party. Setting a parachute on a drone is a common way to solve the problem of automatic drop of a drone. The umbrella of the existing parachute is sealed in the cylinder body, and the sealing of the cylinder body is mostly in the form of a mechanical switch or a hard contact. Among them, the mechanical switch design needs to set a folding cover in the sealing, and use the steering gear to control the closing of the folding cover to open or close the cylinder, and the reliability of using the folding cover is low. The use of a hard contact seal, generally using a cover that is as large as the inner diameter of the umbrella barrel, is covered by friction, and the outer cover is pushed out by hard contact when the parachute is triggered. This design cannot be effectively controlled outside the standard. The installation of the cover is poor in consistency during use.

Summary of the invention

The present invention provides a parachute and a drone having a parachute.

According to a first aspect of the present invention, a parachute is provided for a drone, the parachute comprising a barrel, an umbrella body housed in the barrel, a power mechanism disposed at a bottom of the barrel, and the a triggering mechanism cooperated with the power mechanism, the top of the cylinder is provided with an opening; the parachute further comprises a waterproof film cover for covering the opening and the side of the umbrella body facing the side of the waterproof film cover a piercing member that cooperates with the waterproof film cover; the trigger mechanism is configured to trigger the power mechanism to operate, so that the power mechanism pushes the umbrella body toward the opening, and the umbrella body drives the The piercing member moves toward the waterproof film cover to pierce the waterproof film cover such that both the umbrella body and the piercing member are ejected outside the cylinder through the opening.

According to a second aspect of the present invention, a drone is provided, comprising: a body further comprising a parachute disposed on the body, the parachute comprising a barrel fixed to the body, housed in the barrel An umbrella body in the body, a power mechanism disposed at a bottom of the cylinder body, and a trigger mechanism cooperated with the power mechanism, the top of the cylinder body is provided with an opening; the parachute further comprises a waterproofing device for covering the opening a film cover and a piercing member disposed on a side of the umbrella body facing the waterproof film cover for engaging with the waterproof film cover; the trigger mechanism is configured to trigger the power mechanism to work to enable the power The mechanism pushes the umbrella body toward the opening, and the umbrella body drives the piercing member to move toward the waterproof film cover to pierce the waterproof film cover, so that the umbrella body and the piercing member are both The outside of the cylinder is ejected through the opening.

According to the technical solution provided by the embodiment of the present invention, the invention seals the cylinder through the waterproof film cover, and designs a piercing member matched with the waterproof film cover, and triggers through the trigger mechanism when an abnormal situation occurs in the drone. The power mechanism causes the power mechanism to push the umbrella body to move toward the waterproof film cover, thereby driving the piercing member to pierce the waterproof film cover, thereby effectively opening the umbrella body to the outside of the cylinder, thereby minimizing the drooping of the drone. Damage, especially the risk of third-party property damage caused by the drone falling. The parachute of the invention has the advantages of simple structure, low cost and good consistency in the use of the parachute. Moreover, the waterproof film cover seals the umbrella body in the cylinder body to prevent moisture from entering the umbrella body through the opening of the cylinder body, thereby ensuring that the parachute can be used normally in a harsh environment.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a schematic structural view of a parachute in an embodiment of the present invention;

2 is a schematic view showing the structure splitting of a parachute in an embodiment of the present invention;

3 is a partial structural schematic view of a parachute in an embodiment of the present invention;

4 is a schematic structural view of a parachute according to an embodiment of the present invention, and discloses a state in which both the umbrella body and the piercing member are ejected through the opening;

Figure 5 is a block diagram showing the structure of a parachute portion in an embodiment of the present invention;

6 is a flow chart of the umbrella body of the parachute according to an embodiment of the present invention;

Figure 7 is a block diagram showing the structure of a parachute portion in another embodiment of the present invention;

Figure 8 is a block diagram showing the structure of a drone according to an embodiment of the present invention;

9 is a flow chart of the umbrella body of the parachute of the unmanned aerial vehicle according to an embodiment of the present invention;

Figure 10 is a schematic view showing the structure of an unmanned aerial vehicle according to an embodiment of the present invention.

Reference mark:

100: the fuselage;

200: parachute; 1: cylinder; 11: opening; 2: umbrella; 3: power mechanism; 31: actuator; 32: elastic member; 4: trigger mechanism; 41: trigger button; 42: controller; Waterproof film cover; 6: piercing member; 61: piercing portion; 62: positioning portion; 7: rope;

300: flight controller;

400: terminal;

500: Propeller.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The parachute of the present invention and the drone having the parachute will be described in detail below with reference to the accompanying drawings. The features of the embodiments and embodiments described below may be combined with each other without conflict.

Embodiment 1

1 to 4, a first embodiment of the present invention provides a parachute 200 in which the parachute 200 of the present invention can be used in a drone or other body fall device. This embodiment is further described by taking the parachute 200 as an unmanned aerial vehicle as an example.

The parachute 200 may include a barrel 1, an umbrella body 2 housed in the barrel 1, a power mechanism 3 provided at the bottom of the barrel 1, and a trigger mechanism 4 engaged with the power mechanism 3. Further, the top of the cylinder 1 is provided with an opening 11. The parachute 200 may further include a waterproof film cover 5 and a piercing member 6. The waterproof film cover 5 and the opening 11 for sealing the cylindrical body 1 by the waterproof film cover 5 can seal the umbrella 2 and prevent moisture from passing through the sealing portion (ie, the waterproof film cover 5 and The connection of the opening 11) enters the umbrella body 2, ensuring that the parachute 200 can be used normally in harsh environments.

The piercing member 6 is provided on the side of the umbrella body 2 facing the waterproof film cover 5, and the piercing member 6 of the present embodiment can be used to cooperate with the waterproof film cover 5. Specifically, the trigger mechanism 4 is configured to trigger the power mechanism 3 to operate, so that the power mechanism 3 pushes the umbrella body 2 toward the opening 11, and the umbrella body 2 drives the piercing The piece 6 moves toward the waterproof film cover 5 to pierce the waterproof film cover 5, so that both the umbrella body 2 and the piercing member 6 are ejected outside the cylinder 1 through the opening 11, thereby Body 2 is open. When the parachute 200 is in the storage state, the umbrella body 2 is sealed in the sealed space formed by the waterproof film cover 5 and the cylindrical body 1. However, when the parachute 200 is in the open state, the umbrella body 2 is ejected from the outside of the cylinder 1 to be opened. Referring to Fig. 10, the bottom of the umbrella body 2 can be connected to the unmanned aerial vehicle to be protected by the rope 7, and the resistance of the airbag 2 can resist the gravity of the drone, thereby reducing the speed of the drone, thereby reducing the The impact of the man-machine crash. The material of the rope 7 can be nylon or gas.

In this embodiment, the opening 11 of the cylinder 1 is sealed by the waterproof film cover 5, and the piercing member 6 is matched with the waterproof film cover 5. When the abnormal situation of the drone occurs, the power mechanism 3 is triggered by the trigger mechanism 4. So that the power mechanism 3 pushes the umbrella body 2 toward the waterproof film cover 5, thereby driving the piercing member 6 to pierce the waterproof film cover 5, which can effectively cause the umbrella body 2 to be ejected outside the cylinder 1 to be opened, thereby minimizing The damage of the drone when it falls, especially the risk of third-party property damage caused by the drone falling. In addition, the parachute 200 of the embodiment of the present invention has a simple structure and a low cost, and the uniformity of the parachute 200 during use is good.

In this embodiment, the cylindrical body 1 may be a cylindrical body or may have other shapes.

The power mechanism 3 may be based on a chemical power dynamic principle or a mechanical power dynamic principle. For example, in one embodiment, the power mechanism 3 is based on a chemical power dynamic principle, and specifically, the power mechanism 3 may include a fuel. The trigger mechanism 4 is configured to trigger the fuel to generate a chemical reaction to push the umbrella 2 to move toward the opening 11. Further, the power mechanism 3 may further include a container for storing the fuel.

The specific implementation manner of the dynamic mechanism 3 based on the chemical energy dynamic principle may include the following two types:

First: the fuel is a combustible material, and the trigger mechanism 4 is an ignition mechanism. Therein, the ignition mechanism can be used to ignite the fuel such that the fuel generates a chemical reaction to urge the umbrella 2 to move toward the opening 11, thereby opening the parachute 200. In this embodiment, when an abnormal situation occurs in the drone, the ignition mechanism can be triggered by the trigger mechanism 4, so that the ignition mechanism generates an electric spark, and the combustible substance reacts with the oxygen in the air to generate a large amount of gas, and the large amount of gas impacts the umbrella body. 2 moves toward the opening 11, thereby opening the parachute 200. Optionally, the combustible material is liquid N ₂ H ₄ (diammine).

Second type: the fuel may include a first fuel and a second fuel, and the trigger mechanism 4 is configured to trigger the first fuel and the second fuel to generate a chemical reaction to push the umbrella 2 toward the The opening 11 moves. For example, in a specific implementation, the first fuel and the second fuel may both be solid, and the trigger mechanism 4 may be configured to generate a chemical reaction between the first fuel and the second fuel to generate a large amount. The gas, a large amount of gas impinges on the umbrella body 2 toward the opening 11, thereby opening the parachute 200.

In another embodiment, the power mechanism 3 is based on the principle of mechanical power, and the specific implementation may include the following two types:

First: the power mechanism 3 may include a gas container and a compressed gas contained in the gas container, the trigger mechanism 4 is configured to trigger the gas container to open to release the compressed gas from the gas container Coming out, the compressed gas enters the barrel 1, and the compressed gas expands in the barrel 1 to push the umbrella 2 to move toward the opening 11, thereby opening the parachute 200. In the present embodiment, the compressed gas is released from the gas container into the barrel 1, and the volume of the compressed gas in the barrel rapidly expands, thereby pushing the umbrella 2 toward the opening 11. It is safer to push the umbrella 2 toward the opening 11 by compressing the gas, in a manner that triggers the fuel to generate a chemical reaction by the trigger mechanism 4 to push the umbrella 2 toward the opening 11. It is possible to more effectively ensure that the umbrella body 2 can be ejected outside the cylinder 1, thereby causing the parachute 100 to open. Also, the manner in which the umbrella 2 is moved toward the opening 11 by the compressed gas is easily realized.

Second: The power mechanism 3 can include an actuator 31 and an elastic member 32. One end of the elastic member 32 abuts the umbrella body 2, and the other end is connected to the actuator 31. In this embodiment, the actuator 31 can control the elastic member 32 to be selectively in a compressed state and a pop-up state. Specifically, when the actuator 31 controls the elastic member 32 to be in the pop-up state, the umbrella body 2 moves toward the opening 11 under the elastic force of the elastic member 32, so that the parachute 200 is at Open state. When the actuator 31 controls the elastic member 32 to be in the compressed state, the elastic member 32 is at least partially housed in the actuator 31, and the parachute 200 is in a stored state. The elastic member 32 can be a spring or any other type of elastic member.

Further, the actuator 31 can be controlled by the trigger button 41 to implement manual control of the actuator 31, or the actuator 31 can be controlled by the controller 42 to implement automatic control of the actuator 31 to meet different requirements. Demand. For example, in one embodiment, referring to FIG. 5 and FIG. 6 , the trigger mechanism 4 can be a trigger button 41 disposed outside the cylinder 1 , and the trigger button 41 is connected to the actuator 31 . The actuator 31 can be controlled by operating the trigger button 41 such that the elastic member 32 can be selectively in the compressed state and the pop-up state. In the present embodiment, the actuator 31 can control the elastic member 32 to be selectively in a compressed state and a pop-up state when the trigger button 41 is operated. The operation mode of the trigger button 41 may be a pressing operation or a rotating operation. Optionally, the actuating member 31 can include a receiving hole for receiving the elastic member 32 and an abutting portion connected to the elastic member 32. The pushing portion cooperates with the trigger button 41. The elastic member 32 is pushed up against the upward or downward direction. In a specific implementation manner, the trigger button 41 is a rotating operation. Optionally, when the elastic member 32 is in a compressed state, the trigger button 41 is rotated clockwise to drive the abutting portion upward. The elastic member 32 is configured such that the elastic member 32 is ejected from the receiving hole and pushes up against the umbrella body 2, and the umbrella body 2 moves toward the opening 11 under the elastic force of the elastic member 32. When the elastic member 32 is in the ejected state, the trigger button 41 is rotated counterclockwise to push the urging portion downward against the elastic member 32, so that the elastic member 32 moves downward and at least partially receives In the receiving hole, or when the umbrella body 2 is housed in the cylindrical body 1, the elastic member 32 will move downward under the pressure of the umbrella body 2 and at least partially collect into the receiving hole.

In another embodiment, referring to FIG. 7, the trigger mechanism 4 can be a controller 42 that is electrically coupled to the actuator 31. In this embodiment, the controller 42 is configured to trigger the operation of the actuator 31, so that the actuator 31 controls the elastic member 32 to be selectively in a compressed state and a pop-up state. Optionally, the actuator 31 may include a receiving hole for receiving the elastic member 32, an urging portion connected to the elastic member 32, and a rotating member connected to the urging portion, The rotating member is electrically connected to the controller 42. The controller 42 is configured to control the rotating member to rotate to drive the pressing portion to push the elastic member 32 upward or downward, corresponding to the elastic member. 32 moves up or down. When the elastic member 32 moves upward, the umbrella body 2 is pushed against the opening 11 to open the parachute 200. Optionally, the rotating component is a drive shaft of the motor. The controller 42 can be a single-chip microcomputer such as an ARM or an AVR, or can be a programmable logic device such as an FPGA, and can be selected according to requirements.

In the present embodiment, when the umbrella body 2 is housed in the cylindrical body 1, the umbrella body 2 is in a folded state, and the piercing member 6 is fixedly coupled to the side of the umbrella body 2 facing the waterproof film cover 5. For example, the piercing member 6 can be fixedly attached to the side of the umbrella body 2 facing the waterproof film cover 5 by means of sticking, snapping or the like.

Optionally, a portion of the waterproof film cover 5 opposite to the piercing member 6 is a film layer, and a portion of the waterproof film cover 5 for fixedly connecting with the cylindrical body 1 may be made of plastic or The other hardness is larger than the material of the film to facilitate the fixed connection of the waterproof film cover 5 to the cylinder 1. Further, the thickness of the film layer can be selected according to factors such as the piercing member 6, the impact force of the umbrella body 2 relative to the film layer when moving toward the opening, and the like.

Referring to FIG. 3, the piercing member 6 is provided with a tapered piercing portion 61 toward one side of the waterproof film cover 5, and the umbrella body 2 pushes the knife piercing member 6 toward the waterproof film cover 5, which is tapered. The piercing portion 61 comes into contact with the waterproof film cover 5 and pierces the waterproof film cover 5, so that the piercing member 6 and the umbrella body 2 are ejected outside the cylindrical body 1. Preferably, the piercing portion 61 includes a plurality of pieces to pierce the waterproof film cover 5 more easily. A plurality of the piercing portions 61 may be arranged in a regular manner on a side of the piercing member 6 facing the waterproof film cover 5, for example, a plurality of the piercing portions 61 are spaced apart and uniformly distributed in the The edge of the piercing member 6 is pierced. Of course, a plurality of the piercing portions 61 may also be arranged in an irregular manner on the side of the piercing member 6 facing the waterproof film cover 5.

Further, a positioning portion 62 is further provided on a side of the piercing member 6 facing the waterproof film cover 5. The positioning portion 62 is higher than the piercing portion 61, and the positioning portion 62 is in surface contact with the waterproof film cover 5. When the umbrella body 2 and the piercing member 6 are housed in the cylindrical body 1, the height of the positioning portion 62 needs to be slightly lower than the opening 11 of the cylindrical body 1, or the height of the positioning is not the same as the opening 11 of the cylindrical body 1. When the waterproof film cover 5 is prevented from being covered and the opening 11 is sealed, the piercing portion 61 comes into contact with the waterproof film cover 5 to directly pierce the waterproof film cover 5.

Embodiment 2

Referring to FIG. 10, a second embodiment of the present invention provides a drone, which may include a body 100 and a parachute 200 disposed on the body 100. For the structure, function, working principle and effect of the parachute 200, refer to the description of the first embodiment, and details are not described herein again. The barrel 1 of the present embodiment is fixed to the body 100. For example, the bottom of the barrel 1 can be fixedly attached to the top of the body 100 by a quick release member. The quick release member can be a quick release plate, a thread or other quick release member.

Further, referring to Fig. 10, the umbrella body 2 can be fixed to the body 100 by a rope 7, or the umbrella body 2 can be fixed to the barrel 1 by a rope. When the drone is in an abnormal landing state, the umbrella body 2 is ejected from the outside of the cylinder 1 to open, thereby resisting the gravity of the UAV by the resistance of the air to the Umbrella 2, thereby reducing the speed of the drone, thereby reducing the unmanned The impact of the machine when it falls.

Further, the drone further includes a flight controller 300 for controlling the flight of the drone. In this embodiment, the trigger mechanism 4 of the parachute 200 is the flight controller 300.

The flight controller 300 can automatically trigger the power mechanism 3 to operate or be controlled by a user to trigger the power mechanism 3 to operate. For example, in one embodiment, the flight controller 300 directly triggers the power mechanism 3 to operate. Specifically, when the flight controller 300 detects that the drone is in an abnormal landing state, the flight controller 300 transmits a signal for triggering the operation of the power mechanism 3 to the power mechanism 3, so that The power mechanism 3 pushes the umbrella body 2 toward the opening 11 and ejects the outside of the cylinder 1, thereby opening the umbrella body 2 to protect the drone.

In another embodiment, referring to FIG. 8 and FIG. 10, the drone may further include a terminal 400, and the terminal 400 is communicably connected with the flight controller 300, thereby controlling the flight of the drone, etc. through the terminal 400. Related operations. Referring to FIG. 9, the terminal 400 is configured to send a trigger command to the flight controller 300 to trigger the power mechanism 3 to operate. In this embodiment, when the user determines that the current drone is in an abnormal landing state, the user operates the terminal 400 to cause the parachute 200 to open, thereby protecting the drone. The terminal 400 can be a remote controller, a mobile phone, a smart watch, a tablet, or the like.

Optionally, the drone is a multi-rotor drone, such as a quadrotor drone or an eight-rotor drone. Referring to Figure 10, the drone may further include a propeller 500 and a motor (not shown) for driving the propeller to provide flight power to the drone.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply such entities or operations. There is any such actual relationship or order between them. The terms "including", "comprising" or "comprising" or "comprising" are intended to include a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also other items not specifically listed Elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The parachute and the drone having the parachute provided by the embodiment of the present invention are described in detail. The principle and the embodiment of the present invention are described in the following. The description of the above embodiment is only used to help understand the present invention. The method of the invention and its core idea; at the same time, for the person of ordinary skill in the art, according to the idea of the present invention, there are some changes in the specific embodiment and the scope of application. In summary, the content of the specification should not be understood. To limit the invention.

Claims

A parachute for a drone, comprising: a cylinder, an umbrella body housed in the cylinder body, a power mechanism disposed at a bottom of the cylinder body, and a trigger mechanism cooperated with the power mechanism The top of the cylinder is provided with an opening;

The parachute further includes a waterproof film cover for covering the opening, and a piercing member disposed on a side of the umbrella body facing the waterproof film cover for engaging with the waterproof film cover;

The trigger mechanism is configured to trigger the power mechanism to work, so that the power mechanism pushes the umbrella body toward the opening, and the umbrella body drives the piercing member to move toward the waterproof film cover to pierce The waterproof film cover is such that both the umbrella body and the piercing member are ejected outside the cylinder through the opening.
The parachute according to claim 1, wherein the piercing member is provided with a tapered piercing portion toward a side of the waterproof film cover.
The parachute according to claim 2, wherein the piercing portion comprises a plurality.
The parachute according to claim 3, wherein a plurality of said piercing portions are spaced apart and evenly distributed at an edge of said piercing member.
The parachute according to claim 2, wherein the piercing member is further provided with a positioning portion toward a side of the waterproof film cover;

The positioning portion is higher than the piercing portion, and the positioning portion is in surface contact with the waterproof film cover.
The parachute of claim 1 wherein said power mechanism includes fuel and said triggering mechanism is operative to trigger said fuel to generate a chemical reaction to urge said umbrella body toward said opening.
The parachute according to claim 6, wherein said fuel is a combustible material, and said triggering mechanism is an ignition mechanism for igniting said fuel such that said fuel generates a chemical reaction to urge said umbrella body toward The opening moves.
The parachute according to claim 6, wherein said fuel includes a first fuel and a second fuel, and said trigger mechanism is configured to trigger said first fuel and said second fuel to generate a chemical reaction to promote said The umbrella body moves toward the opening.
The parachute according to claim 1, wherein said power mechanism comprises a gas container and a compressed gas contained in said gas container, said trigger mechanism for triggering said gas container to open to cause said compressed gas Released from the gas container, the compressed gas enters the barrel, and the compressed gas expands within the barrel to urge the umbrella to move toward the opening.
The parachute according to claim 1, wherein the power mechanism comprises an actuator and an elastic member, one end of the elastic member abuts the umbrella body, and the other end is connected to the actuator;

The actuator is capable of controlling the elastic member to be selectively in a compressed state and a pop-up state;

When the actuator controls the elastic member to be in the ejecting state, the umbrella body moves toward the opening under the elastic force of the elastic member;

The elastic member is at least partially housed in the actuator when the actuator controls the elastic member in the compressed state.
The parachute according to claim 10, wherein the trigger mechanism is a trigger button disposed outside the cylinder, and the trigger button is coupled to the actuator;

The actuator can control the elastic member to be selectively in a compressed state and a pop-up state when the trigger button is operated.
The parachute according to claim 10, wherein the trigger mechanism is a controller, and the controller is electrically connected to the actuator;

The controller is configured to trigger the actuator to operate such that the actuator controls the elastic member to be selectively in a compressed state and a popped state.
A drone, comprising a fuselage, further comprising a parachute disposed on the fuselage, the parachute comprising a cylinder fixed to the fuselage, and an umbrella body housed in the cylinder a power mechanism disposed at a bottom of the cylinder and a trigger mechanism coupled to the power mechanism, wherein a top of the cylinder is provided with an opening;

The parachute further includes a waterproof film cover for covering the opening, and a piercing member disposed on a side of the umbrella body facing the waterproof film cover for engaging with the waterproof film cover;

The trigger mechanism is configured to trigger the power mechanism to work, so that the power mechanism pushes the umbrella body toward the opening, and the umbrella body drives the piercing member to move toward the waterproof film cover to pierce The waterproof film cover is such that both the umbrella body and the piercing member are ejected outside the cylinder through the opening.
The drone according to claim 13, wherein the piercing member is provided with a tapered piercing portion toward one side of the waterproof film cover.
The drone according to claim 14, wherein the piercing portion comprises a plurality.
The drone according to claim 15, wherein a plurality of said piercing portions are spaced apart and evenly distributed at an edge of said piercing member.
The drone according to claim 14, wherein a side of the piercing member facing the waterproof film cover is further provided with a positioning portion;

The positioning portion is higher than the piercing portion, and the positioning portion is in surface contact with the waterproof film cover.
The drone of claim 13 wherein said power mechanism includes fuel and said triggering mechanism is operative to trigger said fuel to generate a chemical reaction to urge said umbrella body toward said opening.
The drone according to claim 18, wherein said fuel is a combustible material, and said triggering mechanism is an ignition mechanism for igniting said fuel such that said fuel generates a chemical reaction to push said umbrella The body moves toward the opening.
The drone of claim 18, wherein said fuel comprises a first fuel and a second fuel, said triggering mechanism for triggering said first fuel and said second fuel to produce a chemical reaction, The umbrella body is pushed to move toward the opening.
The drone according to claim 13, wherein said power mechanism comprises a gas container and a compressed gas contained in said gas container, said trigger mechanism for triggering said gas container to open said Compressed gas is released from the gas container such that the compressed gas enters the barrel, and the compressed gas expands within the barrel to urge the umbrella to move toward the opening.
The drone according to claim 13, wherein the power mechanism comprises an actuator and an elastic member, one end of the elastic member abuts the umbrella body, and the other end is connected to the actuator;

The actuator is capable of controlling the elastic member to be selectively in a compressed state and a pop-up state;

When the actuator controls the elastic member to be in the ejecting state, the umbrella body moves toward the opening under the elastic force of the elastic member;

The elastic member is at least partially housed in the actuator when the actuator controls the elastic member in the compressed state.
The drone according to claim 22, wherein the trigger mechanism is a trigger button disposed outside the cylinder, and the trigger button is coupled to the actuator;

The actuator can control the elastic member to be selectively in a compressed state and a pop-up state when the trigger button is operated.
The drone according to claim 22, wherein the trigger mechanism is a controller, and the controller is electrically connected to the actuator;

The controller is configured to trigger the actuator to operate such that the actuator controls the elastic member to be selectively in a compressed state and a popped state.
The drone according to claim 13, further comprising a flight controller, said trigger mechanism being said flight controller;

The flight controller is configured to trigger operation of the power mechanism.
The drone according to claim 25, further comprising a terminal, said terminal being in communication connection with said flight controller;

The terminal is configured to send a trigger command to the flight controller to trigger the power mechanism to work.
The drone according to claim 13, wherein the umbrella body is fixed to the body by a rope;

Alternatively, the umbrella body is fixed to the cylinder by a rope.