CN217730791U

CN217730791U - Exposed parachute and aircraft

Info

Publication number: CN217730791U
Application number: CN202221840453.1U
Authority: CN
Inventors: 周良玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-11-04
Anticipated expiration: 2032-07-15

Abstract

The utility model relates to a technical field of flight equipment provides an exposed parachute and aircraft, include: the umbrella comprises an umbrella cabin with a concave cavity, an air bag arranged in the concave cavity, an umbrella body connected to the umbrella cabin, and an air source arranged on the umbrella cabin; the air source is communicated with the air bag; at least part of the umbrella body is positioned in the concave cavity between the cavity opening and the air bag; when the gas source injects gas into the air bag, the air bag can expand in volume and can extrude the umbrella body out of the concave cavity.

Description

Exposed parachute and aircraft

Technical Field

The utility model belongs to the technical field of flight equipment, more specifically say, relate to an exposed parachute and aircraft.

Background

Unmanned aerial vehicles are used widely in modern life. In order to ensure the safety of the unmanned aerial vehicle, a parachute is usually installed on the unmanned aerial vehicle (see publication No. CN 2120074442U, subject name: parachute and publication No. CN109071028A, subject name: parachute and unmanned aerial vehicle with parachute). In order to push the umbrella body out of the umbrella cabin, the umbrella body is usually required to be ejected out of the umbrella cabin in a mode of generating gas through ignition, and the umbrella body is very troublesome to release.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exposed parachute to solve the very troublesome technical problem of umbrella body release that exists among the prior art.

In order to achieve the purpose, the utility model adopts the technical proposal that: there is provided an exposed parachute comprising: the umbrella comprises an umbrella cabin with a concave cavity, an air bag arranged in the concave cavity, an umbrella body connected to the umbrella cabin, and an air source arranged on the umbrella cabin; the air source is communicated with the air bag; at least part of the umbrella body is positioned in the concave cavity between the cavity opening and the air bag; when the gas source injects gas into the air bag, the air bag can expand in volume and can extrude the umbrella body out of the concave cavity.

Further, all of the umbrella body is positioned in the cavity between the cavity opening and the airbag.

Further, one part of the umbrella body is positioned in the concave cavity between the cavity opening and the air bag, and the other part of the umbrella body is exposed outside the cavity.

Further, the air bag is positioned at the bottom of the cavity.

Further, the umbrella body covers the air bag.

Further, the cavity is tubular.

Further, the opening of the cavity faces upwards.

Further, the opening of the cavity faces directly upward.

Further, still include: a membrane body; the membrane body covers a preset area on the inner wall of the cavity, and the edge of the membrane body is fixed on the inner wall of the cavity; the membrane body and the predetermined area are enclosed to form the air bag; the umbrella body is positioned between the membrane body and the cavity opening; the central region of the membrane body may be closer to or farther from the pocket opening to vary the volume of the bladder.

Further, the gas source is: a gas storage tank; the air storage tank is communicated with the air bag.

Further, the gas source is: an ignition type inflator located within the airbag.

The utility model also provides an aircraft, include: an unmanned aerial vehicle and the exposed parachute; the parachute bay is fixed on the unmanned aerial vehicle.

The utility model provides an exposed parachute's beneficial effect lies in: compared with the prior art, the exposed parachute provided by the utility model has the advantages that the parachute cabin is provided with the concave cavity, the air bag is arranged in the concave cavity and is communicated with the air source, and when the air source injects air into the air bag, the air bag can expand; namely, when the air source injects air into the air bag, the air bag starts to expand and pushes the umbrella body to the opening of the concave cavity; so that the air bag can push the umbrella body out of the concave cavity of the umbrella cabin very easily.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic sectional view of an exposed parachute according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-umbrella cabin; 11-a cavity; 2-air bag; 3-gas source; 4-an umbrella body.

Detailed Description

In order to make the technical problem, technical solution and beneficial effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be noted that in the description of the embodiments of the present application, "/" indicates an OR meaning unless otherwise stated, for example, A/B may indicate A or B; "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. Wherein, A and B can be singular or plural respectively.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, the exposed parachute of the present invention will now be described. The exposed parachute comprises: the umbrella comprises an umbrella cabin 1 with a cavity 11, an air bag 2 arranged in the cavity 11, an umbrella body 4 connected to the umbrella cabin 1, and an air source 3 arranged on the umbrella cabin 1; the air source 3 is communicated with the air bag 2; at least part of the umbrella body 4 is positioned in the cavity 11 between the opening of the cavity 11 and the air bag 2; when the gas source 3 injects gas into the air bag 2, the air bag 2 can expand in volume and can extrude the umbrella body 4 out of the concave cavity 11.

Therefore, the umbrella chamber 1 is provided with a concave cavity 11, the air bag 2 is arranged in the concave cavity 11, the air bag 2 is communicated with the air source 3, and when the air source 3 injects air into the air bag 2, the air bag 2 can expand; that is, when the air source 3 injects air into the air bag 2, the air bag 2 starts to expand and pushes the umbrella body 4 to the opening of the cavity 11; so that the air bag 2 can push the umbrella body 4 out of the cavity 11 of the umbrella cabin 1 very easily.

Further, referring to fig. 1, as a specific embodiment of the exposed parachute of the present invention, the whole parachute body 4 is located in the cavity 11 between the opening of the cavity 11 and the airbag 2. Thus, the placement of the entire umbrella body 4 in the cavity 11 is very convenient.

Referring to fig. 1, the exposed parachute of the present invention will now be described. The exposed parachute comprises: the umbrella comprises an umbrella cabin 1 with a cavity 11, an air bag 2 arranged in the cavity 11, an umbrella body 4 arranged in the cavity 11 and connected to the umbrella cabin 1, and an air source 3 arranged on the umbrella cabin 1; the air source 3 is communicated with the air bag 2; one part of the umbrella body 4 is positioned in the cavity 11 between the opening of the cavity 11 and the air bag 2, and the other part of the umbrella body 4 is exposed outside the cavity 11; when the gas source 3 injects gas into the air bag 2, the air bag 2 can expand in volume and can extrude the umbrella body 4 out of the concave cavity 11.

Therefore, the umbrella cabin 1 is provided with a concave cavity 11, the air bag 2 is arranged in the concave cavity 11, the air bag 2 is communicated with the air source 3, and the air bag 2 expands when the air source 3 injects air into the air bag 2; that is, when the gas source 3 injects gas into the airbag 2, the airbag 2 starts to expand and pushes the umbrella body 4 to the opening of the cavity 11; because one part of the umbrella body 4 is positioned between the opening of the cavity 11 and the air bag 2, the other part of the umbrella body 4 is exposed outside the cavity 11; so that the air bag 2 can push the umbrella body 4 out of the cavity 11 of the umbrella cabin 1 very easily.

In one embodiment, the umbrella body 4 is connected to the umbrella chamber 1 by an umbrella cord.

In one embodiment, the bladder 2 is made of a rubber, cloth or silicone layer.

In one embodiment, the umbrella chamber 1 is made of a plastic material.

In one embodiment, the cavity 11 is upwardly open, and the cavity 11 is hemispherical.

In one embodiment, the airbag 2 is folded in the initial state.

In one embodiment, in the initial state, the gas inside the airbag 2 is evacuated.

In one embodiment, the cavity is in the form of a tube, and the airbag 2, the umbrella body, and the opening of the cavity are arranged in sequence along the extension direction of the tube.

In one embodiment, the bladder 2 may be inflated to fill the entire cavity 11. In one embodiment, the bladder 2 may be inflated to a volume greater than the cavity 11.

Further, referring to fig. 1, as a specific embodiment of the exposed parachute of the present invention, the air bag 2 is located at the bottom of the cavity 11. Thus, the airbag 2 is easily brought into contact with the bottom wall of the cavity 11 and supported by the airbag 2 when inflated.

Further, referring to fig. 1, as a specific embodiment of the exposed parachute provided by the present invention, the parachute body 4 covers the airbag 2. Thus, the umbrella body 4 is pushed to move when the air bag 2 is expanded.

Further, referring to fig. 1, as an embodiment of the present invention, the cavity 11 is tubular. In this way, the movement of the umbrella body 4 along the tubular cavity 11 is facilitated.

Further, referring to fig. 1, as a specific embodiment of the exposed parachute of the present invention, the cavity 11 is opened upward. In this way, the umbrella body 4 is prevented from falling out of the cavity 11 under the action of gravity.

Further, referring to fig. 1, as an embodiment of the present invention, the cavity 11 is opened to the upper side. In this way, the umbrella body 4 is prevented from falling out of the cavity 11 under the action of gravity.

Further, please refer to fig. 1, which is a specific embodiment of the present invention, the present invention further comprises: a membrane body; the membrane body covers a preset area on the inner wall of the cavity 11, and the edge of the membrane body is fixed on the inner wall of the cavity 11; the membrane body and the predetermined area are enclosed to form an air bag 2; the umbrella body 4 is positioned between the membrane body and the opening of the cavity 11; the central region of the membrane may be open close to or remote from the cavity 11 to vary the volume of the bladder 2. Thus, the membrane body covers the predetermined area of the inner wall of the cavity 11, the airbag 2 is formed by enclosing the membrane body and the predetermined area, and the airbag 2 can be expanded when the central area of the membrane body moves towards the opening of the cavity 11.

In one embodiment, the membrane body may be any one of a rubber membrane, a cloth, or a silicone membrane.

In one embodiment, a central region of the membrane body may be close to or remote from the cavity opening to vary the volume of the balloon 2 (in one embodiment, the balloon 2 may vary between a first volume and a second volume, the second volume being greater than the first volume). When the air bag 2 is filled with air, the central area of the membrane body can move towards the cavity opening to enlarge the air bag 2 (in one embodiment, the membrane body has elasticity, and when the air bag 2 is filled with air, the membrane body expands outwards to enlarge the air bag 2); in the expansion process of the air bag 2, the membrane body can extrude the space of the umbrella storage cavity (the umbrella storage cavity: the space for placing the umbrella body 4 in the concave cavity), and the umbrella body can be extruded out of the umbrella cabin from the opening of the concave cavity in the process of compressing the umbrella storage cavity by the membrane body.

In one embodiment, the bladder 2 expands from a first volume to a second volume when the gas source injects a predetermined amount of gas into the bladder 2.

In one embodiment, the central region of the membrane body may be moved closer to and further away from the opening of the cavity to change the shape of the balloon 2. Thus, when gas is injected into the airbag 2, the central region of the membrane can move toward the cavity opening to enlarge the airbag 2. In one embodiment, the membrane body remains relaxed until the balloon 2 volume reaches the second volume. In one embodiment, the membrane itself is resilient and when gas is injected into the bladder 2, the membrane itself expands outwardly to enlarge the bladder 2.

In one embodiment, the membrane body expands to a limit when the balloon 2 is inflated to the second volume.

Further, referring to fig. 1, as a specific embodiment of the exposed parachute of the present invention, the air source 3 is: a gas storage tank; the air storage tank is communicated with the air bag 2. Thus, the gas in the gas container can enter the airbag 2.

In one embodiment, the air reservoir has an air valve; the preset compressed gas in the gas storage tank is as follows: nitrogen, air, and carbon dioxide. In one embodiment, the air storage tank is provided with an air valve, the air storage tank supplies air to the air bag 2 through the air valve, and the air valve can control the on-off of the air flow between the air source 3 and the air bag 2.

Further, referring to fig. 1, as a specific embodiment of the exposed parachute of the present invention, the air source 3 is: an ignition type inflator located inside the airbag 2.

In one embodiment, the ignition-type gas generator includes: a combustible charge for exploding and producing a gas and an initiator for initiating the combustible charge; the combustible medicament is arranged in the air chamber, and the air chamber is communicated with the air bag 2. In this way, the initiator detonates the combustible pharmaceutical agent to generate gas, which is injected into the airbag 2 through the gas chamber; in addition, the heat generated by the flammable pharmaceutical agent during the explosion can also heat the gas and further cause the gas to expand.

In one embodiment, when the combustible pharmaceutical agent is detonable by direct ignition, the detonator can be an electronic igniter.

In one embodiment, when the combustible pharmaceutical agent is a mixture of multiple components to be exploded, and each component is separately received by the capsule, the initiator can puncture the capsule by mechanical impact puncture to mix and explode the multiple components.

In one embodiment, the combustible pharmaceutical agent includes: nitroguanidine (chemical formula: CH4N4O 2). Thus, nitroguanidine is highly flammable and readily generates a large amount of gas when burned.

In one embodiment, the nitroguanidine is in powder or block form.

In one embodiment, made with nitroguanidine: the nitrocellulose powder and the nitroglycerin powder are very easy to burn and explode to push the piston to move.

In one embodiment, the combustible pharmaceutical agent includes: strontium nitrate (chemical formula: sr (NO 3) 2). Thus, strontium nitrate easily causes combustion explosion when heated by itself or mixed with predetermined substances (predetermined substances: organic substances, reducing agents, inflammable substances (e.g., sulfur, phosphorus)), thereby easily moving the piston in the discharge tube.

In one embodiment, the strontium nitrate is in powder or bulk form.

In one embodiment, the combustible pharmaceutical agent includes: ammonium nitrate (chemical formula is NH4NO 3). In this manner, ammonium nitrate is thermally decomposed (or combusted) to form a large amount of gas.

In one embodiment, the ammonium nitrate is heated to produce a gas. In one embodiment, when the ammonium nitrate is at 110 ℃, the ammonium nitrate is heated and decomposed to generate ammonia gas and nitric acid; in one embodiment, ammonium nitrate is heated to decompose at 185 to 200 ℃ to generate nitrous oxide and water; in one embodiment, at 230 to 400 ℃ of ammonium nitrate, the ammonium nitrate is heated to decompose to generate nitrogen, oxygen and water; in one embodiment, above 400 degrees celsius, ammonium nitrate is heated to violently decompose and explode, generating nitrogen, nitrogen dioxide, and water.

In one embodiment, ammonium nitrate and sodium hydroxide (formula: naOH) are heated to produce a gas (e.g., NH 3).

In one embodiment, the ammonium nitrate is in powder or cake form.

In one embodiment, the combustible pharmaceutical agent comprises: 5-aminotetrazole (formula is CH3N 5), triazolone (in one embodiment, triazolone has formula of C14H16ClN3O2, chemical name: 1- (4-chlorophenoxy) -3, 3-dimethyl-1- (1H-1, 2, 4-triazol-1-yl) -alpha-butanone. In one embodiment, triazolone is 1,2, 4-triazolone), CL-20 (academic name: hexanitrohexaazaisowurtzitane), AZODN (academic name: azodimethyl ether dinitrate), azide-based explosive agent (such as sodium azide). Thus, 5-aminotetrazole, triazolone, CL-20 and azide explosive agents are easy to decompose or explode to generate a large amount of gas.

In one embodiment, 5-aminotetrazole is very explosive in combination with any one or more of hydroxides, nitrates, and perchlorates.

In one embodiment, 5-aminotetrazole is as follows: a production method of bis-5-aminotetrazole which is a gas generating agent of an air bag 2, and the publication number is as follows: CN 102442963A.

In one embodiment, the 5-aminotetrazole is in powder or block form.

In one embodiment, the triazolone is in powder or block form.

In one embodiment, CL-20 is in powder or block form.

In one embodiment, the azo is in powder or block form.

In one embodiment, the azide-based explosive agent is in the form of a powder or a block.

Referring to fig. 1, the present invention further provides an aircraft, including: an unmanned aerial vehicle and an exposed parachute; the parachute bay 1 is fixed on the unmanned aerial vehicle. Therefore, due to the adoption of the exposed parachute, the parachute cabin 1 is provided with the concave cavity 11, the air bag 2 is arranged in the concave cavity 11, the air bag 2 is communicated with the air source 3, and when the air source 3 injects air into the air bag 2, the air bag 2 expands; that is, when the gas source 3 injects gas into the airbag 2, the airbag 2 starts to expand and pushes the umbrella body 4 to the opening of the cavity 11; because one part of the umbrella body 4 is positioned between the opening of the cavity 11 and the air bag 2, the other part of the umbrella body 4 is exposed outside the cavity 11; so that the air bag 2 can push the umbrella body 4 out of the cavity 11 of the umbrella cabin 1 very easily.

In one embodiment, the drone is a quad-rotor drone of great ARUM.

In one embodiment, the canopy 1 and canopy can be described in the following publications: CN113148184A, subject name: an easily detachable parachute.

In one embodiment, the manner in which the parachute bay 1 is mounted on the drone may be referred to in the publication: CN113148184A, subject name: easy-to-dismount parachute.

In one embodiment, the umbrella body 4 is directly fixed on the inner wall of the umbrella cabin 1 through an umbrella rope.

In one embodiment, the release of the umbrella body 4 from the chamber 1 can be achieved by reference to the publication: CN 21204442U, topic name: parachute (parachute).

In one embodiment, the release of the umbrella body 4 from the chamber 1 can be achieved by reference to the publication: CN212195931U, subject name: an ejection parachute landing device.

In one embodiment, the manner in which the umbrella body 4 is released from the chamber 1 can be found in the publication: CN214875602U, subject name: parachute launching system.

In one embodiment, the manner in which the umbrella body 4 is stored within the umbrella bay 1 and the manner in which the umbrella body 4 is released can be found in reference to publication No.: CN109071028A, topic name: parachute and unmanned aerial vehicle with parachute ".

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. An exposed parachute, comprising: the umbrella comprises an umbrella cabin with a concave cavity, an air bag arranged in the concave cavity, an umbrella body connected to the umbrella cabin, and an air source arranged on the umbrella cabin; the air source is communicated with the air bag; at least part of the umbrella body is positioned in the concave cavity between the cavity opening and the air bag; when the gas source injects gas into the air bag, the air bag can expand in volume and can extrude the umbrella body out of the concave cavity.

2. An exposed parachute according to claim 1 wherein all of said parachute body is positioned within said cavity between said cavity opening and said air bladder.

3. An exposed parachute according to claim 1 wherein a portion of said body is disposed within said cavity between said cavity opening and said bladder and another portion of said body is exposed outside of said cavity.

4. An exposed parachute according to claim 1 wherein the bladder is located at the bottom of the cavity.

5. An exposed parachute according to claim 1 wherein the cavity is tubular.

6. An exposed parachute according to claim 1 wherein the cavity is upwardly open.

7. The exposed parachute of claim 1, further comprising: a membrane body; the membrane body covers a preset area on the inner wall of the concave cavity, and the edge of the membrane body is fixed on the inner wall of the concave cavity; the membrane body and the predetermined area are enclosed to form the air bag; the umbrella body is positioned between the membrane body and the cavity opening; the central region of the membrane body may be open to or away from the cavity to vary the volume of the bladder.

8. An exposed parachute according to claim 1, wherein the air supply is: a gas storage tank; the air storage tank is communicated with the air bag.

9. An exposed parachute according to claim 1 wherein the air supply is: an ignition type inflator located within the airbag.

10. An aircraft, characterized in that it comprises: an unmanned aerial vehicle and an exposed parachute as claimed in any one of claims 1 to 9; the parachute bay is fixed on the unmanned aerial vehicle.