A net cover mounting structure for a flight survival device

Abstract

The application discloses a net cover mounting structure of a flight lifesaving device, relates to the technical field of unmanned planes, and aims to provide a more convenient net cover dismounting structure for the flight lifesaving device, so as to deal with the cleaning work of the adhesion, winding and other sundries on the net cover in the rescue process and guarantee the convenient maintenance of the flight lifesaving device. The structure mainly comprises a rotor shell, a net cover and a magnetic attraction assembly used for connecting the net cover and the rotor shell, wherein the rotor shell is split into an outer shell and an inner shell, a certain interval is left between the outer shell and the inner shell, magnetic attraction grooves are formed at the two ends of the rotor shell in the up-down direction, the magnetic attraction assembly is composed of a female magnet arranged in the magnetic attraction groove and a male magnet arranged on the net cover, the female magnet and the male magnet are magnetically attracted to each other, and the dismounting of the net cover on the rotor shell is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicles, in particular to a net cover mounting structure of a flight lifesaving device. BACKGROUND

[0002] In the technical field of unmanned aerial vehicles, different types of unmanned aerial vehicles are needed for different application scenarios, and the demand for water surface, underwater rescue, exploration and other operations is gradually increasing.

[0003] The existing announcement No. CN119190443A discloses a flight life buoy, which comprises a shell, a rotor assembly, a power supply assembly and other electrical components.

[0004] Its main function is to realize flight function by starting the rotor assembly, and to provide rescue service for the rescued personnel after landing when flying near the rescued personnel.

[0005] However, in actual use, there are various sundries on the water surface for rescue, such as weeds, river algae, household garbage, etc., which cause the protective net on the rotor assembly to stick to a large amount of sundries, and the existing protective cover is usually installed in a completely fixed manner, which is not convenient for cleaning.

[0006] Therefore, a new protective net mounting method needs to be designed to facilitate cleaning. SUMMARY

[0007] In view of the above technical deficiencies, the technical problem to be solved by the present application is to provide a net cover mounting structure of a flight lifesaving device.

[0008] To solve the above technical problems, the present application adopts the following technical scheme: the present application provides a net cover mounting structure of a flight lifesaving device, which comprises:

[0009] The rotor shell is provided with a duct for setting the rotor;

[0010] The net cover is arranged on the upper side and the lower side of the rotor shell, respectively;

[0011] The magnetic attraction assembly is arranged between the rotor shell and the net cover.

[0012] Preferably, the rotor shell comprises a coaxial outer shell and an inner shell, and annular magnetic attraction grooves are provided at the upper and lower ends between the outer shell and the inner shell;

[0013] The magnetic attraction assembly comprises a female magnet provided in the magnetic attraction groove and a male magnet provided at the edge of the net cover.

[0014] Preferably, the female magnets are arranged at equal intervals around the magnetic attraction groove axis, and the female magnets comprise fixed magnets and movable magnets, and the movable magnets and the inner wall of the magnetic attraction groove are provided with elastic members;

[0015] The sub-magnet is extended and provided with a magnetic convex body embedded between the first magnet and the second magnet.

[0016] Preferably, the magnetic convex body is provided with a clamping groove on the side of the second magnet, and the second magnet is extended with a limiting body matched with the clamping groove.

[0017] Preferably, the limiting body is provided with a guide slope on the upper and lower sides, which is in sliding abutment with the clamping groove.

[0018] Preferably, the elastic member is a sponge that absorbs water and expands.

[0019] Preferably, the sponge extends through the magnetic attraction groove at both ends of the rotor shell from top to bottom.

[0020] Preferably, the inner shell, the first magnet and the magnetic convex body are coaxially provided with a ventilation hole, and one end of the ventilation hole is in communication with the clamping groove.

[0021] The beneficial effects of the present application are:

[0022] 1. The mesh cover of the flight lifesaving device is fixed by a magnetic attraction structure, which facilitates the disassembly and maintenance of the mesh cover.

[0023] 2. During flight, a negative pressure is formed by the high-speed airflow in the rotor shell, thereby ensuring the installation stability of the mesh cover during flight.

[0024] 3. After falling into the water, the sponge absorbs water and squeezes the second magnet, thereby ensuring the installation stability of the mesh cover during rescue. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0026] Figure 1 A structure diagram of a mesh cover installation structure of a flight lifesaving device is provided.

[0027] Figure 2 A schematic diagram for showing the mesh cover and the sub-magnet.

[0028] Figure 3 A schematic diagram of a female magnet structure with a spring as an elastic member.

[0029] Figure 4 A partial cross-sectional view of the mesh cover installation structure with a sponge as an elastic member.

[0030] Explanation of reference signs: 1, rotor housing; 11, outer shell; 12, inner shell; 14, magnetic attraction groove; 2, mesh cover; 3, magnetic attraction assembly; 4, female magnet; 41, magnet one; 511, clamping groove; 42, magnet two; 421, limiting body; 422, guide slope; 5, sub-magnet; 51, magnetic convex body; 6, air hole; 7, sponge; 8, spring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Figures 1-4 It is shown that the present application provides a mesh cover mounting structure of a flight lifesaving device, aiming to provide a more convenient mesh cover 2 dismounting structure for the flight lifesaving device to cope with the cleaning work of the adhesion, winding and other sundries on the mesh cover 2 in the rescue process, and to ensure the convenient maintenance of the flight lifesaving device.

[0033] The structure mainly includes a rotor housing 1, a mesh cover 2 and a magnetic attraction assembly 3 for connecting the mesh cover 2 and the rotor housing 1, wherein the rotor housing 1 is divided into an outer shell 11 and an inner shell 12, and a certain interval is left between the outer shell 11 and the inner shell 12, so that a magnetic attraction groove 14 is formed at both ends of the rotor housing 1 in the up-down direction, the magnetic attraction assembly 3 is composed of a female magnet 4 arranged in the magnetic attraction groove 14 and a sub-magnet 5 arranged on the mesh cover 2, and the female magnet 4 and the sub-magnet 5 are magnetically attracted to each other, realizing the dismounting of the mesh cover 2 on the rotor housing 1.

[0034] Specifically, at least four female magnets 4 are arranged at equal intervals in the magnetic attraction groove 14, and the female magnet 4 is composed of two parts of a magnet one 41 and a magnet two 42, wherein the magnet one 41 is fixed on the inner wall of the inner shell 12 of the magnetic attraction groove 14 by means of adhesion or the like, and the magnet two 42 is movably arranged in the magnetic attraction groove 14, and an elastic member is installed between the magnet two 42 and the inner wall of the outer shell 11 of the magnetic attraction groove 14, so that the magnet two 42 has a tendency to approach the magnet one 41, and the sub-magnet 5 has a magnetic convex body 51 inserted and installed between the magnet one 41 and the magnet two 42, and the installation stability of the mesh cover 2 on the rotor housing 1 is improved through the mutual action of clamping friction and magnetic attraction.

[0035] Since the magnetic attraction component 3 may experience magnetic decay due to various external conditions during actual testing, resulting in a decrease in magnetic attraction force, in this invention, a snap-fit ​​groove 511 is preset on the side of the magnetic protrusion 51 facing the second magnet 42, and a limiting body 421 extends on the corresponding second magnet 42. The limiting body 421 can be embedded in the snap-fit ​​groove 511, further improving the installation stability of the mesh cover 2.

[0036] At the same time, it is necessary to ensure the ease of disassembly of the mesh cover 2. The upper and lower sides of the limiting body 421 are preset as guide slopes 422. The guide slopes 422 can slide and abut against the inner wall of the snap-fit ​​groove 511. Therefore, when the mesh cover 2 is manually disassembled and assembled, the magnetic protrusion 51 can enter and exit between the magnet 1 41 and the magnet 2 42 more smoothly.

[0037] The aforementioned elastic element can be either a spring 8 or a sponge 7. If a very small spring 8 is used, there are certain difficulties in installation and production. Therefore, this application specifically describes the installation structure using sponge 7.

[0038] The outer shell 11 and inner shell 12 of the rotor housing 1 are connected by a horizontal annular plate. A vertical through hole is provided on the annular plate. The sponge 7 is inserted into the through hole, and the upper and lower ends of the sponge 7 extend into the magnetic groove 14. The second magnet 42 is fixedly connected to the sponge 7. At the same time, a vent hole 6 is coaxially provided on the inner shell 12, the first magnet 41, and the magnetic protrusion 51, and one end of the vent hole 6 is connected to the snap-fit ​​groove 511.

[0039] When the flight rescue equipment is activated, the propeller in the rotor housing 1 rotates, causing a rapid flow of gas in the rotor housing 1. This creates a negative pressure in the vent 6, and the limiting body 421 on the magnet 42 is tightly attracted into the locking groove 511 under the action of the negative pressure, thereby improving the connection stability between the sub-magnet 5 and the mother magnet 4 during the flight of the flight rescue equipment.

[0040] Furthermore, after the flight rescue equipment falls into the water, the lower end of the sponge 7 comes into contact with the water source and absorbs water. At this time, the sponge 7 expands and squeezes the magnet 42, thereby ensuring the connection stability between the sub-magnet 5 and the mother magnet 4 after falling into the water.

[0041] The working principle of this invention is:

[0042] In the flight rescue equipment, the rotor shell 1 is equipped with a net cover 2 on the upper and lower sides. The net cover 2 and the rotor shell 1 are connected by magnetic attraction between the sub-magnet 5 and the mother magnet 4, which facilitates the disassembly and replacement of the net cover 2.

[0043] When the flight rescue equipment is in flight, a high-speed gas flow is generated in the rotor shell 1, which creates a negative pressure in the magnetic suction assembly 3, ensuring the installation stability of the net cover 2;

[0044] When the flight lifesaving device falls into the water, the sponge absorbs water and presses the magnet 42 in the magnetic attraction assembly 3, which also ensures the stability of the installation of the net cover 2.

[0045] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications, equivalent replacements or improvements of the technical solutions described in the foregoing embodiments can be made. Any modifications, equivalent replacements or improvements made within the spirit and principle of the present application shall fall within the scope of the present application.

Claims

1. A net cover mounting structure of a flight rescue device, characterized by comprising: Include: The rotor housing (1): preset for setting the rotor duct; Net cover (2): respectively set in the upper and lower sides of the rotor housing (1); The rotor housing (1) and the net cover (2) are provided with magnetic assembly (3); The rotor housing (1) includes coaxial shell (11) and inner shell (12), the upper and lower ends of the shell (11) and the inner shell (12) are provided with annular magnetic slot (14); The magnetic assembly (3) includes a female magnet (4) preset in the magnetic slot (14) and a sub-magnet (5) preset on the edge of the net cover (2); The female magnet (4) is arranged at equal intervals around the magnetic slot (14) axis, the female magnet (4) includes fixed magnet one (41) and movable magnet two (42), the magnet two (42) and the inner wall of the magnetic slot (14) are provided with elastic element; The sub-magnet (5) extends and is provided with a magnetic convex body (51) embedded between the magnet one (41) and the magnet two (42); The magnetic convex body (51) is provided with a clamping groove (511) on the side of the magnet two (42), and the magnet two (42) extends a limiting body (421) embedded in the clamping groove (511); The inner shell (12), the magnet one (41) and the magnetic convex body (51) are coaxially provided with air holes (6), one end of the air hole (6) is communicated with the clamping groove (511).

2. A net housing mounting structure for a flight survival equipment according to claim 1, wherein The upper and lower sides of the limiting body (421) are provided with guide inclined surface (422) which is slidingly connected with the clamping groove (511).

3. A net housing mounting structure for a flight survival equipment according to claim 1, wherein The elastic element adopts water-absorbing sponge (7).

4. A net housing mounting structure for a flight survival kit according to claim 3, wherein The sponge (7) extends through the magnetic slot (14) at both ends of the rotor housing (1) from top to bottom.

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