Unmanned aerial vehicle falling protection structure

Abstract

The utility model relates to an unmanned aerial vehicle falling protection structure, which belongs to the technical field of unmanned aerial vehicles, and comprises an unmanned aerial vehicle main body, a mounting base, a parachute bay shell, a cabin cover, a parachute rope and a parachute cover, an electromagnetic lock, a spring base, a parachute containing box, an annular compressed gas storage bottle, an electric control gas valve, a gas nozzle, a storage battery and a parachute master controller are installed on a parachute bay shell, a breather pipe is installed on the parachute containing box, and the breather pipe is connected with a parachute cover through a parachute rope. According to the unmanned aerial vehicle falling protection device, the spring lifting and conveying module and the gas ejection module which are opened by the electromagnetic lock are arranged, so that the parachute can be stably and rapidly ejected and unfolded when the unmanned aerial vehicle falls, more effective falling protection is achieved, the parachute cover can be rapidly opened by arranging the gas ejection module, and the safety of the unmanned aerial vehicle is improved. And the rotor wing of the unmanned aerial vehicle is prevented from damaging the winding parachute rope due to deviation in the parachute opening process, so that the falling protection effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV crash protection structure. Background Technology

[0002] Drones require crash protection primarily because of the unpredictable flight environment they face and their delicate and fragile structure. Crash protection design aims to minimize physical damage from crashes, ensure flight safety, reduce maintenance costs, and improve the user experience.

[0003] A search revealed that Chinese patent application number CN202322704050.5 discloses a drone anti-fall blade protection device. This device features a protective mechanism with a quick-release structure using a return spring, buckle, and slot, enabling rapid installation and removal of the protective mechanism. This improves the convenience of installation and removal, allowing for quick replacement and maintenance after damage, thus increasing the drone's operational efficiency and overall practicality. Furthermore, the inclusion of elastic blocks provides elastic support to the positioning strip after the protective frame is mounted on the mounting arm. This keeps the protective frame and mounting arm taut, preventing vibrations during drone operation from affecting the stability of the protective mechanism and improving its stability during use. The rubber elastic blocks also provide long-term, stable elastic support to the positioning strip.

[0004] The above-mentioned technical solutions have the following drawbacks: such drone fall protection structures can protect the drone's blades through protective components. There are other support structures on the market that surround the drone for protection. Although such protective structures can provide cushioning protection for the drone, they are still difficult to achieve fall protection effectiveness if the flight altitude is high in actual use. Therefore, a drone fall protection structure is proposed, which is equipped with a spring lifting module and a gas ejection module that are opened by an electromagnetic lock. This allows the parachute to be stably and quickly ejected and deployed when the drone falls, thereby achieving more effective fall protection. The gas jet module can quickly open the parachute canopy, preventing the drone rotor from deflecting during the opening process and damaging the entangled parachute lines, thereby further improving the fall protection effect.

[0005] In view of this, this work improves and solves the above problems. Through dedicated research and application of theoretical principles, a technical solution with a reasonable design that can effectively improve the above defects has finally been proposed.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the general background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] This utility model provides a drone crash protection structure that solves the problems mentioned in the background. It is equipped with a spring lifting module and a gas ejection module that are opened by an electromagnetic lock, so that the parachute can be stably and quickly ejected and deployed when the drone crashes, thereby achieving more effective crash protection. The gas injection module can quickly open the parachute canopy and prevent the drone rotor from deviating during the opening process and damaging the parachute lines, thereby further improving the crash protection effect.

[0008] The solution to the above-mentioned technical problems of this utility model is as follows: A drone crash protection structure, including a drone body, a mounting base, a parachute compartment shell, a canopy, parachute lines, and a parachute canopy, wherein the drone body, the mounting base, the parachute compartment shell, and the canopy are connected in sequence;

[0009] The outer shell of the parachute compartment is equipped with an electromagnetic lock, a spring base, a parachute mounting box, a ring-shaped compressed gas storage cylinder, an electrically controlled air valve, a jet nozzle, a storage battery, and a parachute main control unit. The parachute mounting box is equipped with a vent pipe, which is connected to the parachute canopy via parachute lines.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the mounting base is designed with a suitable shape corresponding to the shape of the drone body, and mounting holes are set at the four corners, which can be connected to the drone body by screws.

[0012] Furthermore, a shock-absorbing rubber layer is provided in the middle of the mounting base. The shock-absorbing rubber layer has a honeycomb structure to isolate the vibration of the drone.

[0013] Furthermore, the canopy is made of brittle plastic and has explosion marks engraved on its surface. The explosion marks are set as rectangular structures that are adapted to the umbrella storage box, and the top of the umbrella storage box is a sloping structure.

[0014] Furthermore, the spring base is provided with a retractable protective sleeve, which covers the spring base.

[0015] Furthermore, the electromagnetic lock limits the spring base, and the umbrella holder is provided with a support plate corresponding to the spring base.

[0016] Furthermore, the annular compressed gas storage cylinder, the electrically controlled gas valve, and the jet nozzle are connected in sequence, and the storage battery provides power to the electromagnetic lock, the electrically controlled gas valve, and the parachute.

[0017] Furthermore, the parachute master controller is equipped with an accelerometer and a gyroscope. It can trigger a fall protection signal when it detects a free fall acceleration >2g and an angular velocity >300° / s during continuous tumbling. The parachute master controller is connected to an electromagnetic lock and an electronically controlled gas valve via a signal line.

[0018] This utility model provides a fall protection structure for drones, which has the following advantages:

[0019] 1. Equipped with an electromagnetic lock-activated spring lifting module and a gas ejection module, the parachute can be stably and quickly ejected and deployed in the event of a drone crash, thereby achieving more effective fall protection.

[0020] 2. Equipped with a gas jet module, the parachute canopy can be opened quickly, preventing the drone rotor from deflecting during the opening process and damaging the parachute lines, thereby further improving the fall protection effect.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the parachute opening state of a drone crash protection structure provided in one embodiment of the present invention;

[0024] Figure 2 This is a front view of a drone crash protection structure provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the parachute compartment shell in a drone crash protection structure according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the parachute compartment shell in the open state of a drone crash protection structure according to an embodiment of the present invention;

[0027] Figure 5 This is a top-view structural diagram of the parachute compartment shell in a drone crash protection structure according to an embodiment of the present invention;

[0028] Figure 6This is a circuit system architecture diagram of the parachute main control in a drone crash protection structure according to an embodiment of the present invention.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. UAV body; 2. Mounting base; 3. Parachute compartment shell; 4. Canopy; 5. Shock-absorbing rubber layer; 6. Electromagnetic lock; 7. Spring base; 8. Parachute mounting box; 9. Annular compressed gas cylinder; 10. Electrically controlled air valve; 11. Nozzle; 12. Battery; 13. Vent pipe; 14. Parachute lines; 15. Parachute canopy; 16. Retractable protective cover; 17. Parachute main control unit. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-6 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0032] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figure 1-6 As shown, a drone crash protection structure includes a drone body 1, a mounting base 2, a parachute compartment shell 3, a canopy 4, parachute lines 14, and a parachute canopy 15, with the drone body 1, mounting base 2, parachute compartment shell 3, and canopy 4 connected in sequence.

[0035] The outer shell of the parachute compartment 3 is equipped with an electromagnetic lock 6, a spring base 7, a parachute storage box 8, a ring-shaped compressed gas storage cylinder 9, an electrically controlled air valve 10, a jet nozzle 11, a storage battery 12, and a parachute main control 17. The parachute storage box 8 is equipped with a vent pipe 13, which is connected to the parachute canopy 15 via parachute ropes 14.

[0036] Preferably, the mounting base 2 is selected with a suitable shape corresponding to the body shape of the drone body 1, and mounting holes are set at the four corners, and it can be connected to the drone body 1 by screws.

[0037] Preferably, a shock-absorbing rubber layer 5 is provided in the middle of the mounting base 2. The shock-absorbing rubber layer 5 has a honeycomb structure to isolate the vibration of the drone.

[0038] Preferably, the canopy 4 is made of brittle plastic material, and the surface is engraved with explosion marks. The explosion marks are set as a rectangular structure that matches the umbrella storage box 8, and the top of the umbrella storage box 8 is a sloping structure.

[0039] Preferably, the spring base 7 is provided with a retractable protective sleeve 16, which covers the spring base 7.

[0040] Preferably, the electromagnetic lock 6 limits the spring base 7, and the umbrella holder 8 is provided with a support plate corresponding to the spring base 7.

[0041] Preferably, the annular compressed gas storage cylinder 9, the electrically controlled air valve 10, and the jet nozzle 11 are connected in sequence, and the battery 12 supplies power to the electromagnetic lock 6, the electrically controlled air valve 10, and the parachute main control 17.

[0042] The specific working principle and usage method of this utility model are as follows:

[0043] For structural assembly, select a suitable mounting base 2 to connect the drone body 1 and the parachute shell 3. After folding the parachute canopy 15 evenly and storing it in the parachute storage box 8, connect the canopy cover 4 to the parachute shell 3 with bolts to complete the assembly.

[0044] The parachute main controller 17 is equipped with an accelerometer and gyroscope. It can detect a free fall acceleration >2g and identify a continuous tumbling state angular velocity >300° / s to trigger a fall protection signal. The parachute main controller 17 is connected to the electromagnetic lock 6 and the electric control valve 10 via a signal line. After the electromagnetic lock 6 is opened, the retractable protective cover 16 can lift out the parachute housing box 8. The parachute housing box 8 can then work with high-pressure gas to break open the scratched area on the surface of the hatch 4. The parachute main controller 17 can spray the high-pressure gas in the annular compressed gas storage cylinder 9 through the nozzle 11. The high-pressure gas, such as carbon dioxide, can be used to inflate the parachute canopy 15 through the ventilation pipe 13, so that the parachute canopy 15 can be quickly deployed for drone fall protection.

[0045] The parachute master controller 17 can be the OWL-M30 model parachute central controller, the electromagnetic lock 6 can be the LY-03 model electromagnetic lock, and the electric control valve 10 can be the SFO-0525V-119.

[0046] It should be noted that this utility model only describes how the physical structure is connected to protect the solenoid valve-spring trigger structure and the gas ejection structure. It does not innovate or improve the circuit design itself. The relevant circuit description is only used to describe the specific implementation of this utility model and is not within the scope of protection. The equipment uses common components available on the market and can be replaced with similar models. It has its own corresponding control circuit and can be used by connecting the plug. Therefore, the circuit is not described in detail.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A drone fall protection structure comprising a drone body (1), a mounting base (2), a parachute bay housing (3), a bay cover (4), a parachute lanyard (14), a parachute canopy (15), characterized in that: The UAV body (1), mounting base (2), parachute compartment shell (3), and canopy (4) are connected in sequence; The outer shell (3) of the parachute compartment is equipped with an electromagnetic lock (6), a spring base (7), a parachute mounting box (8), an annular compressed gas storage cylinder (9), an electrically controlled air valve (10), a jet nozzle (11), a storage battery (12), and a parachute master control (17). The parachute mounting box (8) is equipped with a vent pipe (13), which is connected to the parachute canopy (15) via parachute ropes (14).

2. The unmanned aerial vehicle crash protection structure of claim 1, wherein, The mounting base (2) is designed to correspond to the shape of the UAV body (1) and has mounting holes at its four corners. It can be connected to the UAV body (1) with screws.

3. The unmanned aerial vehicle crash protection structure of claim 1, wherein, A shock-absorbing rubber layer (5) is provided in the middle of the mounting base (2). The shock-absorbing rubber layer (5) has a honeycomb structure to isolate the vibration of the drone.

4. The unmanned aerial vehicle crashworthiness structure of claim 1, wherein, The canopy (4) is made of brittle plastic and has explosion marks engraved on its surface. The explosion marks are set as a rectangular structure that is compatible with the umbrella storage box (8). The top of the umbrella storage box (8) is a sloping structure.

5. The unmanned aerial vehicle crashworthiness structure of claim 1, wherein, The spring base (7) is provided with a retractable protective sleeve (16), which covers the spring base (7).

6. The unmanned aerial vehicle crashworthiness structure of claim 1, wherein, The electromagnetic lock (6) limits the spring base (7), and the umbrella holder (8) is provided with a support plate corresponding to the spring base (7).

7. The unmanned aerial vehicle crashworthiness structure of claim 1, wherein, The annular compressed gas storage cylinder (9), the electrically controlled air valve (10), and the jet nozzle (11) are connected in sequence, and the battery (12) supplies power to the electromagnetic lock (6), the electrically controlled air valve (10), and the parachute main control (17).

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