CN212890974U - Rescue airbag device of small-sized multi-shaft rotor unmanned aerial vehicle - Google Patents

Abstract

The patent of the utility model relates to a small-size multiaxis rotor unmanned aerial vehicle's rescue gasbag device, including base, upper cover, gas cylinder, trigger mechanism, valve mechanism, control circuit, gasbag mechanism etc. The base is used for mounting an integral structure and is matched with the upper cover through screws to realize integral protection and sealing; the gas cylinder is filled with liquid carbon dioxide and is connected with the base through threads; the trigger mechanism consists of a sliding block, a puncture needle, a spring and an electromagnet; the valve mechanism consists of a pressure reducing valve, a one-way valve and a pressure reducing valve; the control circuit consists of a sensor, an input interface and a main control chip; the air bag mechanism is composed of a plurality of air bag units, and can play the best protection effect. This rescue airbag device can be when small-size multiaxis rotor unmanned aerial vehicle goes wrong and falls, by the sensor initiative or by the operator passive triggering, the injury that unmanned aerial vehicle striking ground or fall into aquatic and cause fuselage and inner structure reduces unmanned aerial vehicle owner's loss of property greatly.

Description

Rescue airbag device of small-sized multi-shaft rotor unmanned aerial vehicle

Technical Field

The utility model relates to an unmanned air vehicle technique field specifically is a small-size multiaxis rotor unmanned aerial vehicle's rescue gasbag device, can use in fields such as civilian small-size unmanned aerial vehicle that takes photo by plane and unmanned aerial vehicle racing motion.

Background

At present, the unmanned aerial vehicle field develops rapidly, and various types such as agricultural plant protection unmanned aerial vehicles, surveying and mapping unmanned aerial vehicles, aerial photography unmanned aerial vehicles, racing unmanned aerial vehicles and the like appear. According to the classification of flight platform configuration, unmanned aerial vehicle can mainly be divided into fixed wing unmanned aerial vehicle and multiaxis rotor unmanned aerial vehicle. Because unmanned aerial vehicle adopts remote radio control flight, there is certain hidden danger in safety, probably because the fault of out of control, the hardware problem of itself or external environment reason, and lead to unmanned aerial vehicle uncontrolled from the high altitude to drop. Fixed wing unmanned aerial vehicle can slowly descend because of aerodynamic reason, and multiaxis rotor unmanned aerial vehicle still can cause the injury to ground personnel because from great, the structure is complicated, the loss greatly increased who causes of falling. If the unmanned aerial vehicle falls into water bodies such as rivers and lakes, and the depth is large, the possibility of successful recovery is very low, and great property loss can be caused.

To the problem that multiaxis rotor unmanned aerial vehicle falls out of control now, solutions such as parachute slow descent, gasbag protection have been proposed, but application platform is mostly large-scale multiaxis rotor unmanned aerial vehicle. With the improvement of the technology and the reduction of the cost, the holding rate of the small-sized multi-shaft rotor unmanned aerial vehicle among the common people is continuously increased, and the small-sized multi-shaft rotor unmanned aerial vehicle is mainly used in the fields of entertainment and aerial photography; the condition that the unmanned aerial vehicle is scrapped or lost can be caused by the loss-control pendant with low follow-up maintenance cost. To above problem, refer to existing invention scheme, the utility model relates to a small in size makes things convenient for small-size multiaxis rotor unmanned aerial vehicle to install, can effectively absorb the impact force of falling aircraft to the organism, also provides buoyancy for the unmanned aerial vehicle that drops aquatic simultaneously, has reduced injury and loss of property that the falling aircraft brought.

Disclosure of Invention

The utility model discloses a purpose: to small-size civilian multiaxis rotor unmanned aerial vehicle's holder, provide a solution that reduces the crash loss out of control, can effectively solve the impact when small-size unmanned aerial vehicle falls and cause the difficult problem of damage, immerse the underwater unable recovery to the organism.

In order to solve the difficult problem, a small-size multiaxis rotor unmanned aerial vehicle's rescue gasbag device mainly includes base, upper cover, gas cylinder, trigger mechanism, valve mechanism, control circuit, gasbag mechanism to and screw, nut, pipeline, sealing member and connecting piece etc.. The base is used for installing an integral structure and fixing the base with the unmanned aerial vehicle, and the upper cover is matched with the base through screws and used for sealing and protecting an internal structure; 12g of liquid carbon dioxide is filled in the gas cylinder and is connected with the base through threads, and a sealing ring is arranged at the opening of the gas cylinder to prevent gas leakage; the triggering mechanism consists of a sliding block, a puncture needle, a spring and an electromagnet, the puncture needle is fixed on the sliding block, the sliding block is connected with the base through a clamping groove, the spring is positioned at the tail of the sliding block and is normally in a compressed state, and the electromagnet is fixed on the base and used for limiting the sliding block; the valve mechanism consists of a one-way valve and a pressure release valve, wherein the inlet of the one-way valve is connected with the tail part of the puncture needle through a pipeline, the outlet of the one-way valve is connected with the inlet of the pressure release valve through a pipeline, and the outlet of the pressure release valve is connected with the air bag mechanism through a pipeline; the control circuit consists of a sensor, an input interface and a main control chip; the air bag mechanism is composed of a plurality of air bag units, and the air bag units are connected through pipelines.

As a preferred technical scheme of the invention, 12g of liquid carbon dioxide is filled in the gas cylinder, the gas cylinder is connected with the base through threads, and the gas tightness is increased by using a sealing ring to prevent gas leakage; by an ideal gas state equation pV = nRT (p is the volume of an ideal gas, N is the amount of a gaseous substance, T is the thermodynamic temperature of an ideal gas, and R is an ideal gas constant), under one atmosphere pressure and a temperature of 20 ℃, the volume after 12g of carbon dioxide is completely gasified is about 6.56L, which provides about 60N buoyancy, and effectively reduces the impact force when falling, avoiding damage to the unmanned aerial vehicle body.

As a preferable technical scheme of the invention, the trigger mechanism consists of a sliding block, a puncture needle, a spring and an electromagnet. Before use, the sliding block with the puncture needle is pressed backwards; at the moment, the electromagnet is powered off, the iron core extends out, the position of the sliding block is limited, and the spring is always in a compressed state; when the main control chip sends a signal, the control electromagnet is electrified, the iron core is sucked back, the spring in a compressed state is released, the sliding block is pushed to move forwards, the puncture needle is punctured into the gas cylinder, and the release of gas is realized.

As a preferred technical scheme of the invention, the valve mechanism consists of a one-way valve and a pressure release valve; the one-way valve is used for inflating the air bag in one way to prevent the air bag filled with air from leaking; the pressure relief valve is used for discharging redundant gas and preventing the airbag from being damaged due to continuous inflation of the fully inflated airbag.

As a preferred technical scheme of the invention, the air bag mechanism consists of a pipeline, a one-to-six joint and an air bag unit; the air inlet of the one-to-six joint is connected with the valve mechanism, and the outlet of the one-to-six joint is respectively connected with at most six air bag units through pipelines, so that the air supply of all the air bag units can be realized simultaneously; the gasbag unit can be arranged at unmanned aerial vehicle's different positions as required, for example horn, descending foot rest, fuselage etc. position to reach best protective effect.

The utility model discloses an effect: the utility model relates to a small-size multiaxis rotor unmanned aerial vehicle's rescue gasbag device adopts the carbon dioxide gas cylinder air feed, and the device has the air feed and stabilizes swift, the various advantage of gasbag arrangement for solenoid valve or steering wheel trigger device that traditional unmanned aerial vehicle gasbag device adopted, can reduce the injury that causes unmanned aerial vehicle fuselage and inner structure greatly, reduces unmanned aerial vehicle owner's loss of property.

Drawings

Fig. 1 is an isometric view of a three-dimensional model of a rescue airbag device gas control portion of a small-sized multi-axis rotor unmanned aerial vehicle.

Fig. 2 is an isometric view of a three-dimensional model of an air bag portion of a rescue air bag device of a small-sized multi-axis rotor unmanned aerial vehicle.

FIG. 3 is an isometric view of a three-dimensional model of the total assembly.

In fig. 1: 1. the device comprises a base, 2, a carbon dioxide gas cylinder, 3, a gas cylinder gasket, 4, a puncture needle sliding block, 5, a sealing gasket, 6, an electromagnet, 7, a spring, 8, a pin, 9, an end cover, 10, a main control IC, 11, a hose, 12, a one-way valve, 13 and a pressure release valve.

In fig. 2: 14. air bag (unfolded state), 15, one-to-six joint, 16 and plug.

Detailed Description

The utility model relates to a small-size multiaxis rotor unmanned aerial vehicle's rescue gasbag device, including base, carbon dioxide gas cylinder, felting needle slider, electro-magnet, spring, end cover, master control IC, check valve, relief valve, gasbag, one minute six connect, the end cap to and external members such as pin, seal ring, hose.

Referring to fig. 1, a carbon dioxide gas cylinder 2 is screwed on a base 1 through a bottle mouth thread; the air tightness between the bottle mouth and the base is kept through a gas cylinder gasket 3; the puncture needle slide block 4 is fixed in the groove of the base 1 and can move back and forth; the sealing washer 5 is fixed on the pricker slider 4 and keeps air tightness with the base 1; the electromagnet 6 is fixed on the outer side of the base 1, the inner iron core is in an extended state under normal conditions, and the position of the puncture needle sliding block 4 is limited through the hole on the base 1; one end of the spring 7 is propped against the tail part of the puncture needle slide block 4, and the other end is propped against the end cover 9; the end cover 9 and the base 1 are fixed through a pin 8; the main control IC 10 is fixed on the outer side of the base 1 and communicated with the electromagnet 6 to control the extension and retraction of the internal iron core; the hose 11 is connected with the puncture needle slider 4 and the inlet of the one-way valve 12 to realize the conduction of air flow; the outlet of the one-way valve 12 is connected to the inlet of a pressure relief valve 13.

Referring to fig. 2, the air bag part mainly comprises an air bag 14, a one-to-six joint 15 and a plug 16, wherein the air bag 14 is connected to an air outlet of the one-to-six joint 15; the plug 16 is also connected to the air outlet of the one-six joint 15 to prevent air leakage from the unused air outlet.

Referring to fig. 3, the gas control part in fig. 1 and the air bag part in fig. 2 are connected to form a complete rescue air bag device of the small-sized multi-shaft rotor unmanned aerial vehicle.

The utility model relates to a small-size multiaxis rotor unmanned aerial vehicle's rescue gasbag device, its assembly process mainly includes with several steps: step (a), pasting a gas cylinder gasket 3 and a sealing gasket 5 on the position of a base 1, which needs to keep air tightness; the felting needle slide block 4 is placed in the clamping groove of the base 1 and can move back and forth; the electromagnet 6 is fixed on the outer side of the base 1, and the extended iron core is inserted into the limiting hole of the needle slider 4 through the hole position of the base 1 to limit the needle slider 4 at the initial position; placing a spring 7, installing an end cover 9, and fixing the spring 7 with the base 1 by adopting a pin 8 to enable the spring 7 to be in a compressed state; fixing the master control IC 10 at the outer side of the base 1, and connecting the electromagnet 6 with the master control IC 10; one end of the hose 11 is inserted into the tail part of the puncture needle slider 4, and the other end is inserted into the inlet of the one-way valve 12; the outlet of the check valve 12 is connected to the inlet of the pressure relief valve 13.

Selecting a corresponding number of air bags 14 according to the size/quality of the unmanned aerial vehicle, and connecting inflation ports of the air bags 14 to air outlets of a one-in-six joint 15; the gas outlet which is not used on the one-six joint 15 is blocked by a plug 16 to prevent gas leakage.

A step (c) of connecting the gas control portion and the air bag portion; screwing the carbon dioxide gas cylinder 2 on the base 1 through threads; the gas control part is arranged at a proper position of the multi-axis unmanned aerial vehicle and is connected with a flight control system; install on the unmanned aerial vehicle organism after compressing the folding with the gasbag, notice the smooth expansion that the mounted position mode can not obstruct the gasbag.

The utility model relates to a small-size multiaxis rotor unmanned aerial vehicle's rescue gasbag device, its use as follows: when the main control IC detects that the flight state of the unmanned aerial vehicle is abnormal or receives a sent command, the electromagnet is electrified, and the internal iron core is sucked back under the action of magnetic force; the puncture needle slider is released and moves forwards under the action of a compression spring; the needle point punctures the film at the head of the carbon dioxide gas cylinder, the liquid carbon dioxide is released, and the vaporization expansion is led out by the hose; gaseous behind check valve, overflow valve, one minute six joint, leading-in fold condition gasbag respectively, the gasbag is inflated rapidly and is made the part that contacts to the earth when unmanned aerial vehicle descends receive the buffer protection, also provides buoyancy for the unmanned aerial vehicle that drops the aquatic simultaneously, has reduced injury and the loss of property that the air crash brought.

Claims (1)

1. The utility model provides a small-size multiaxis rotor unmanned aerial vehicle's rescue gasbag device which characterized in that: the gas cylinder triggering device comprises a base (1), a gas cylinder (2), a triggering mechanism, a valve mechanism, a control circuit and a gas bag mechanism; the base (1) is used for installing an integral structure and fixing the integral structure with an unmanned aerial vehicle, and the upper part of the base is provided with an upper cover matched with the base and used for sealing and protecting an internal structure; the liquid carbon dioxide is filled in the gas cylinder (2) and is connected with the base (1) through threads, and a gas cylinder gasket (3) is arranged at the opening of the gas cylinder to prevent gas leakage; the gas cylinder triggering mechanism is characterized in that the triggering mechanism consists of a pricking pin sliding block (4), an electromagnet (6) and a spring (7), the pricking pin sliding block (4) is connected with the base (1) through a clamping groove and can move back and forth within a certain range, the spring (7) is located at the tail part of the pricking pin sliding block (4), the pricking pin sliding block (4) is released when the electromagnet (6) is electrified, and the spring (7) pushes the pricking pin sliding block (4) to move forward so as to prick the opening of the gas cylinder (2) and release gas; the valve mechanism consists of a one-way valve (12) and a pressure relief valve (13), wherein the one-way valve (12) is used for preventing air leakage, and the pressure relief valve (13) is used for releasing redundant air; the control circuit consists of a main control chip, and the main control chip is used for processing signals and controlling the trigger mechanism to release the air bag (14); the gasbag mechanism comprises a plurality of gasbags (14), one minute six joint (15) and end cap (16), can select the quantity and the arrangement position of gasbag (14) according to unmanned aerial vehicle's weight and shape by oneself, plays best protection effect.

Images