CN209852559U - Quick assembly disassembly's interface structure and unmanned aerial vehicle - Google Patents

Abstract

The application discloses a quick-dismounting interface structure and an unmanned aerial vehicle, wherein the interface structure comprises a first connecting part fixed on a first component, and a first interface part is arranged on the first connecting part; a second connecting part fixed on the second component, wherein a second interface part is arranged on the second connecting part; when the first component and the second component are in a fixed state, the first interface part is butted with the second interface part, and the two interface parts are in interference fit. The utility model provides a quick detach simple structure, reliable, easy operation can realize the quick assembly disassembly of structural part and electric part simultaneously, especially in the unmanned aerial vehicle field, can realize the quick assembly disassembly of wing and string arm, can effectively reduce transportation space and cost of transportation.

Description

Quick assembly disassembly's interface structure and unmanned aerial vehicle

Technical Field

The utility model relates to the technical field of mechanical equipment, in particular to quick assembly disassembly's interface structure and unmanned aerial vehicle.

Background

With the rapid development of the manufacturing industry of mechanical equipment, in most practical application scenes, mechanical structure parts need to be rapidly disassembled and assembled so as to be convenient to maintain and replace.

Particularly in the application field of unmanned aerial vehicles, the key technology which troubles technicians during connection between a connecting pipe and a horn of a wing part of the unmanned aerial vehicle is found, if the unmanned aerial vehicle is connected in a welding mode and the like, the unmanned aerial vehicle is not detachable, particularly, the freight unmanned aerial vehicle has a large size, the transportation cost is increased due to the fact that a large space is needed during transportation, and the later-stage detachment and maintenance of the unmanned aerial vehicle are influenced; if detachable unmanned aerial vehicle, do not have clear reliable connected mode at present mostly to unmanned aerial vehicle's electrical system's dismantlement connection, its dismouting procedure is complicated again moreover.

In view of this, it is an urgent need to develop a fast-release structure for multiple applications that is reliable and does not affect electrical connections.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect among the prior art or not enough, the utility model aims at providing a quick assembly disassembly's interface structure and unmanned aerial vehicle can realize the quick assembly disassembly of structure part and electric part simultaneously.

The utility model provides a quick assembly disassembly's interface structure, include: the first connecting part is fixed on the first component, and a first interface part is arranged on the first connecting part; a second connecting part fixed on the second component, wherein a second interface part is arranged on the second connecting part; when the first component and the second component are in a fixed state, the first interface part is butted with the second interface part, and the two interface parts are in interference fit.

Furthermore, first connecting portion are provided with first tenon fourth of twelve earthly branches portion, the second connecting portion are provided with second tenon fourth of twelve earthly branches portion, first tenon fourth of twelve earthly branches portion with second tenon fourth of twelve earthly branches portion mortise-tenon joint, and interference fit between the tenon fourth of twelve earthly branches structure.

Further, a first electrical connector is arranged in the first interface part; a second electric joint is arranged in the second interface part; the first and second electrical connectors are mated to each other.

Furthermore, the first mortise and tenon joint part comprises a first mortise and tenon joint part and a first mortise and tenon joint part, and the second mortise and tenon joint part comprises a second mortise and tenon joint part and a second mortise and tenon joint part.

Further, a threaded hole is formed in the first joggle joint or the second joggle joint; a through hole aligned with the threaded hole is formed in the first connecting part or the second connecting part; a threaded fastener is threaded through the through hole into the threaded hole when the first and second components are in a secured state.

Further, the first connecting part is detachably connected with the first component, and the second connecting part is detachably connected with the second component.

Furthermore, the first connecting part is bonded with the first component, and the second connecting part is bonded with the second component.

Further, the bonding is realized by epoxy glue.

Further, the electric connector comprises a power connector and a signal wire connector.

The utility model provides an unmanned aerial vehicle adopts the aforesaid wantonly quick assembly disassembly's interface structure, the first part is the wing, the second part is for hanging the arm.

Has the advantages that: the application provides a quick assembly disassembly's interface structure, the design is simple, reliable, easy operation. Firstly, the first interface part is butted with the second interface part, and the two interface parts are in transition fit, so that the main fit function is realized when the quick-release parts are assembled, and the first electric connector and the second electric connector are also matched with each other in the process, so that the quick assembly and disassembly of the structure part between the quick-release parts are realized, and the quick assembly and disassembly of the electric part are also realized; secondly, the first mortise and tenon joint part and the second mortise and tenon joint part are in mortise and tenon joint, and the mortise and tenon joint structures are in transition fit, the process and the matching of the interface part are synchronously carried out during assembling and disassembling, and the matching of the interface part plays an auxiliary role; finally, when the first component and the second component are in a fixed state, the threaded fastener penetrates through the through hole and is screwed into the threaded hole, the operation plays a final whole fastening role, the operation is simple, and the disassembly is convenient. Especially in the unmanned aerial vehicle field, can realize the quick assembly disassembly of wing and string arm, not only convenient maintenance and change have effectively reduced transportation space and cost of transportation moreover.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments with reference to the attached drawings in which:

fig. 1 is a schematic structural view of a first connection portion of a quick-release interface structure in a detached state below a second connection portion according to the present invention;

fig. 2 is a schematic structural view of a first connection portion of a quick-release interface structure according to the present invention in an assembled state below a second connection portion;

fig. 3 is a schematic diagram of a first connection portion of a quick-release interface structure according to the present invention;

fig. 4 is a schematic diagram of a structure related to a second connecting portion in the quick-release interface structure according to the present invention;

fig. 5 is a schematic view of an application of the quick-release interface structure of the present invention to a wing and a boom of an unmanned aerial vehicle;

fig. 6 is a schematic structural diagram of an embodiment of the unmanned aerial vehicle according to the present invention in a detached state of the first connecting portion above the second connecting portion;

fig. 7 is a schematic structural diagram of the unmanned aerial vehicle according to the embodiment of the present invention in a combined state where the first connecting portion is above the second connecting portion;

reference numerals: the connector comprises a first component 1, a second component 2, a first connecting part 3, a second connecting part 4, a first connecting part 5, a second connecting part 6, a first electric joint 7, a first tenon 8, a first mortise 9, a second electric joint 10, a second tenon 11 and a second mortise 12.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Use unmanned aerial vehicle technical field as the background, to VTOL unmanned aerial vehicle, especially freight transportation unmanned aerial vehicle, because its size is great, cause inconvenience for the transportation, if the unmanned aerial vehicle structure is non-detachable, then the transportation needs great space and cost of transportation, the unmanned aerial vehicle structure that prior art used at present can dismantle, but the dismantlement to the structural electrical system part of unmanned aerial vehicle is most not clear, reliable connected mode, and it is complicated and loaded down with trivial details to dismantle the equipment step, lead to unmanned aerial vehicle dismouting efficiency not high, and brought the potential safety hazard. Similarly, in other mechanical fields requiring quick disassembly and assembly, the above-mentioned disassembly and assembly problems also exist.

The problem that the dismouting is complicated exists for the quick detach structure who takes electrical connector in solving prior art, the embodiment of the utility model provides a but a set of structure of quick assembly disassembly and electrical connector's interface structure in order to avoid the appearance of above-mentioned situation.

As shown in fig. 1, which is a schematic structural diagram of a first connecting portion in a quick-release interface structure in a detached state below a second connecting portion, a first connecting portion 3 is fixed on a first component 1, and a first interface portion 5 is arranged on the first connecting portion 3; a second connecting part 4 fixed on the second component 2, wherein a second interface part 6 is arranged on the second connecting part 4; as shown in fig. 2, the structure of the first connection portion of the quick assembly/disassembly interface structure according to the present invention is schematically illustrated in the assembled state below the second connection portion, when the first component 1 and the second component 2 are in the fixed state, the first interface portion 5 is butted against the second interface portion 6, and the two interface portions are in transition fit.

In this embodiment, an application scenario in which a first component and a second component need to be disassembled quickly is taken as an example, specifically, a disassembled state and an assembled state of a first connecting portion below a second connecting portion are taken as an example, as shown in fig. 1 and fig. 2, an object of disassembling and assembling between a first connecting portion 3 and a second connecting portion 4 is to quickly disassemble and assemble a first component 1 and a second component 2, wherein a first interface portion 5 is disposed on the first connecting portion 3, and a second interface portion 6 is disposed on the second connecting portion 4, and the first interface portion 5 and the second interface portion 6 are butted with each other during assembly, that is, a portion of the second interface portion 6 shaped like a card slot is clamped to a portion of the first interface portion 5 shaped like a card head, so that the first component 1 and the second component 2 are assembled, and a transition fit state is formed between the two interface portions; in addition, the first member 1 and the second member 2 can be detached from each other simply by using a mechanical tool such as a wrench to detach the first interface 5 and the second interface 6 from each other. When the first interface part and the second interface part are butted against each other, a part shaped like a card slot on the first interface part may be engaged with a part shaped like a card head on the first interface part. It should be noted that, besides the structures similar to the chuck and the slot shown in the figures, the first interface part 5 and the second interface part 6 may also be other structures that can be inserted into and pulled out of each other and can achieve the purpose of positioning and quick assembly and disassembly, and this is not limited here. The interface structure of equipment and dismantlement that this embodiment provided only needs to dock two interface parts and dismouting just can realize quick assembly disassembly, simple structure, reliable, easy operation moreover, and transition fit relation wherein has also played two interface part location and has made things convenient for the effect of dismouting, and its principle is when transition fit, under the normal stress effect of above-mentioned draw-in groove and dop contact surface, the contact surface produces elastoplasticity and deforms, forms certain mechanical interlocking effect.

Further, as shown in fig. 3 and fig. 4, the first connection portion and the second connection portion of the quick-release interface structure are respectively related to a schematic structural diagram. First connecting portion 3 is provided with first mortise-tenon joint portion, second connecting portion 4 is provided with second mortise-tenon joint portion, be equipped with four first mortise-tenon joint portions 8 and two first mortise-tenon joint portions 9 in the first mortise-tenon joint portion, be equipped with two second mortise-tenon joint portions 11 and four second mortise-tenon joint portions 12 in the second mortise-tenon joint portion, at above-mentioned first interface portion 5 and 6 butt joint in-process of second interface portion, as shown in fig. 1 and fig. 2, four first mortise-tenon joint portions 8 and four second mortise-tenon joint portions 12 mortise-tenon joint of each other, two first mortise-tenon joint portions 9 and two second mortise-tenon joint portions 11 mortise-tenon joint of each other, and transition fit between these two sets of mortise-tenon structures. It should be noted that, a plurality of mortise and tenon joints and a plurality of mortise and tenon joints may be respectively disposed on the first mortise and tenon joint portion and the second mortise and tenon joint portion, as long as the plurality of sets of mortise and tenon joints are mutually mortise and tenon jointed, and no limitation is made here. Specifically, the mortise joint part refers to the square nut protruding on the first connecting part and the second connecting part, and the mortise joint part refers to the part matched with the square nut protruding on the first connecting part and the second connecting part, obviously, four mortise joint parts and two mortise joint parts also can be arranged on the second mortise joint part, and simultaneously, two mortise joint parts and four mortise joint parts also can be arranged on the first mortise joint part. It should be noted that, the mortise-tenon connection of the two sets of mortise-tenon structures only plays a role of assisting in connecting the first component and the second component, and what plays a main role in the connection is the above-mentioned butt-joint step of the first interface part and the second interface part. The two groups of mortise-tenon joints are simple in structure, convenient and easy to assemble and disassemble, and play a role in secondary positioning and convenient assembly and disassembly.

Specifically, the transition fit refers to a fit in which tolerance zones of the hole and the shaft overlap with each other, and the fit may have a clearance or an interference, and the clearance and the interference are generally small. The transition fit is mainly used for positioning connection which requires good centering property and coaxiality between hole shafts and is easy to disassemble and assemble, such as connection of the inner diameter of a rolling bearing and a shaft. In this embodiment, a large clearance is generally not desired for the fit between the first interface portion and the second interface portion to be more accurately positioned, while a large interference is not desired for the disassembly, and the fit is selected to be a transition fit in view of certain tolerances in the manufacture of the components.

Further, as shown in fig. 3 and 4, a first electrical connector 7 is disposed in the first interface portion 5, and a second electrical connector 10 is disposed in the second interface portion 6, and in the process of butting the first interface portion 5 and the second interface portion 6, as shown in fig. 1 and 2, the first electrical connector 7 and the second electrical connector 10 are matched with each other to complete assembly, and are automatically separated directly following the detachment of the first interface portion and the second interface portion. Wherein, the first electrical connector 7 is fastened on the first connecting part 3 through a bolt, the second electrical connector 10 is also fastened on the second connecting part 4 through a bolt, the disassembly and the replacement are convenient through the bolt connection, and the connection strength is larger. Specifically, first electrical connector and second electrical connector all include power connection and signal line connector, compare prior art, this embodiment modularization power connection and signal connector can support the different combinations of a plurality of DB multitap signal connectors and a plurality of DB power connection according to actual demand, and the modularization general joint on first electrical connector and the second electrical connector is mutually matchd, avoided in the prior art because electrical connector is scattered to be arranged, and can not dismantle uniformly when quick detach, high-efficiently.

Furthermore, as shown in fig. 3 and 4, each of the four first joggling portions 8 is provided with a threaded hole, and each of the overhanging flange portions at both sides of the second connecting portion 4 is provided with four through holes aligned with the four threaded holes, when the first component 1 and the second component 2 are assembled together, the four threaded fasteners are respectively screwed into the corresponding threaded holes through the corresponding through holes, so that the final fastening effect is achieved for the whole assembly, the operation process is simple, and the fastening effect is reliable. It should be noted that, when four mortise joints and two mortise joints are disposed on the second mortise joint, and two mortise joints and four mortise joints are disposed on the first mortise joint, a threaded hole is disposed on each of the four second mortise joints 9, and four through holes aligned with the four threaded holes are disposed on each of the overhanging flange portions on both sides of the first connection portion 3. It should also be noted that the threaded fastener is a widely used detachable fixed connection, has the advantages of simple structure, reliable connection, convenient assembly and disassembly, and generally comprises a bolt, a stud, a screw, a nut and a washer.

Furthermore, the first connecting portion 3 and the first component 1 can be detachably connected, the second connecting portion 4 and the second component 2 can be detachably connected, specifically, the detachable connecting mode comprises detachable modes such as threaded connection, buckle connection and hinge connection, the detachment, the maintenance and the replacement between connecting pieces are facilitated, and therefore material resources are saved. For example, what adopt is threaded connection mode to the connection between first connecting piece 3 and the first part 1 is taken as an example, attacks threaded hole for first connecting portion earlier, sets up corresponding screw through-hole for the first part simultaneously, with first connecting piece cover on the first part and adopt threaded fastener to fasten can, only need loosen the nut during the dismantlement and just can accomplish the dismantlement.

Preferentially, bond between first connecting portion 3 and the first part 1, bond between second connecting portion 4 and the second part 2, wherein bond preferably adopt the epoxy to glue and realize, also can glue in the twinkling of an eye, anaerobism glue, UV glue, hot melt adhesive etc. compare above-mentioned adoption and can dismantle the mode, this kind of bonding mode often because bonding strength is big, the dismantlement degree of difficulty is big, is a non-detachable connected mode in fact, moreover this kind of mode easy operation, connection effect are good. Specifically, the epoxy adhesive generally refers to an adhesive prepared by taking epoxy resin as a main body, and also comprises an epoxy resin curing agent, and is characterized by good curing effect, strong adhesion, low shrinkage, good chemical stability, good dimensional stability, and good mechanical and electrical properties.

To facilitate a better understanding of the quick-release interface structure shown in fig. 1 to 4, a specific practical application will be described as an example. As shown in fig. 5, it is the utility model relates to an application schematic diagram of quick assembly disassembly's interface structure on unmanned aerial vehicle's wing and string arm specifically uses VTOL freight transportation unmanned aerial vehicle as an example, wherein first part 1 is the inside combined material structure of unmanned aerial vehicle wing, herein abbreviated as unmanned aerial vehicle wing, second part 2 is unmanned aerial vehicle's string arm, among present unmanned aerial vehicle wing and the string arm detachable construction, only considered easy dismounting between the relevant structure, wherein the dismouting structure is complicated, the connected mode intensity is not high, and there is not clear reliable electrical system's dismantlement mode yet. Based on this, the quick-assembly-disassembly interface structure provided by the embodiment can realize the defects in the prior art.

Fig. 6 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention in a detached state of a first connecting portion above a second connecting portion, where the purpose of detaching and installing the first component 1 (wing) and the second component 2 (hanging arm) is to rapidly detach and install the first connecting portion 3 on the wing, the first connecting portion 3 is provided with a first interface portion 5, and the first electrical connector 7 is provided in the first interface portion 5; the hanging arm is provided with a second connecting part 4, the second connecting part 4 is provided with a second interface part 6, and a second electric connector 10 is arranged in the second interface part 6; fig. 7 is the utility model relates to a structural schematic under the combined state of first connecting portion on the second connecting portion in unmanned aerial vehicle embodiment, when wing and string arm are in the fixed state, first interface part 5 butt joint second interface part 6, and transition fit between two interface parts, match mutually between first electrical connector 7 and the second electrical connector 10 simultaneously, the equipment of structure and electrical signal between wing and the string arm has so far been accomplished, adopt the instrument can carry out the structure dismantlement with first interface part 5 second interface part 6 during the dismantlement, electrical signal connects and can part along with the dismantlement of structure simultaneously.

Further, the first electrical connector 7 and the second electrical connector 10 are a universal DB power connector and a signal line connector, respectively, and different electrical connector combinations can be made as required, and three sets of connectors between the first electrical connector 7 and the second electrical connector 10 are in a mutually matched relationship in the figure. Specifically, the first electrical connector 7 is fastened to the first connection portion 3 by six bolts, and the second electrical connector 10 is fastened to the second connection portion 4 by six bolts. Compared with the prior art, the disassembly mode of the electrical connector is fully considered, and the modularization is concentrated in the quick-release structure of the structural member, so that the reliable quick disassembly and assembly of the electrical connector are realized, and the disassembly and assembly steps are simpler and clearer.

Further, first connecting portion 3 is provided with first mortise and tenon department, second connecting portion 4 is provided with second mortise and tenon department, be equipped with four first mortise and tenon departments 8 and two first mortise and tenon departments 9 in the first mortise and tenon department, be equipped with two second mortise and tenon departments 11 and four second mortise and tenon departments 12 in the second mortise and tenon department, at first interface portion 5 and 6 butt joint in-process of second interface portion, as shown in fig. 6 and 7, four first mortise and tenon departments 8 and four second mortise and tenon departments 12 are mortise and tenon joints of each other, two first mortise and tenon departments 9 and two second mortise and tenon joints 11 are mortise and tenon joints of each other, and transition fit between these two sets of mortise and tenon structures.

It should be noted that, the mortise-tenon connection of the two sets of mortise-tenon structures only plays a role of assisting in connecting the first component and the second component, and what plays a main role in the connection is the above-mentioned butt-joint step of the first interface part and the second interface part. The two groups of mortise-tenon joints are simple in structure, convenient and easy to assemble and disassemble, and play a role in secondary positioning and convenient assembly and disassembly.

Furthermore, as shown in fig. 6 and 7, each of the four first joggling portions 8 is provided with a threaded hole, and each of the overhanging flange portions at both sides of the second connecting portion 4 is provided with four through holes aligned with the four threaded holes, when the first component 1 and the second component 2 are assembled together, the four threaded fasteners are respectively screwed into the corresponding threaded holes through the corresponding through holes, so that the final fastening effect is achieved for the whole assembly, the operation process is simple, and the fastening effect is reliable. It should be noted that the threaded fastener is a widely used detachable fixed connection, has the advantages of simple structure, reliable connection, convenient assembly and disassembly, and the like, and generally comprises a bolt, a stud, a screw, a nut and a washer.

Further, bond between first connecting portion 3 and the wing, bond between second connecting portion 4 and the string arm, wherein bond and adopt epoxy glue, compare the above-mentioned adoption and can dismantle the mode, this kind of bonding mode often because bonding strength is big, the dismantlement degree of difficulty is big, is a non-detachable connection mode in fact, and this kind of mode easy operation, connection effect are good moreover.

It should be noted that, the quick-detachable interface structure provided by this embodiment is preferably applied to quick detachment of a wing and a boom of an unmanned aerial vehicle, and may also be applied to other fields of machinery requiring quick detachment, especially to technical places requiring quick detachment of a structural part and an electrical signal part, such as a connection part between a boom and a fuselage of a robot, a connection part between an extending arm and a base of a fitness equipment, and a connection part between a heavy-duty mechanical automation module, etc.

To sum up, the quick assembly disassembly's that this application provided interface structure, the design is simple, reliable, easy operation. Firstly, the first interface part is butted with the second interface part, and the two interface parts are in transition fit, so that the main fit function is realized when the quick-release parts are assembled, and the first electric connector and the second electric connector are also matched with each other in the process, so that the quick assembly and disassembly of the structure part between the quick-release parts are realized, and the quick assembly and disassembly of the electric part are also realized; secondly, the first mortise and tenon joint part and the second mortise and tenon joint part are in mortise and tenon joint, and the mortise and tenon joint structures are in transition fit, the process and the matching of the interface part are synchronously carried out during assembling and disassembling, and the matching of the interface part plays an auxiliary role; finally, when the first component and the second component are in a fixed state, the threaded fastener penetrates through the through hole and is screwed into the threaded hole, the operation plays a final whole fastening role, the operation is simple, and the disassembly is convenient. Especially in the unmanned aerial vehicle field, can realize wing and hang the quick dismantlement and the equipment of the structural component of arm and electrical signal, not only convenient maintenance and change have effectively reduced transportation space and cost of transportation moreover.

It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the invention. For example, the above features may be interchanged with other features disclosed in this application, but not limited to those having similar functions.

Claims (10)

1. A quick assembly disassembly's interface structure which characterized in that includes:

the first connecting part is fixed on the first component, and a first interface part is arranged on the first connecting part;

a second connecting part fixed on the second component, wherein a second interface part is arranged on the second connecting part;

when the first component and the second component are in a fixed state, the first interface part is butted with the second interface part, and the two interface parts are in transition fit.

2. The quick disconnect interface structure of claim 1, wherein the quick disconnect interface structure comprises a plurality of quick disconnect elements

The first connecting portion are provided with first mortise and tenon joint portions, the second connecting portion are provided with second mortise and tenon joint portions, the first mortise and tenon joint portions are in mortise and tenon joint with the second mortise and tenon joint portions, and transition fit is achieved between mortise and tenon joint structures.

3. The quick disconnect interface structure of claim 1,

a first electric joint is arranged in the first interface part;

a second electric joint is arranged in the second interface part;

the first and second electrical connectors are mated to each other.

4. The quick disconnect interface structure of claim 2,

the first mortise and tenon joint part comprises a first mortise and tenon joint part and a second mortise and tenon joint part comprises a second mortise and tenon joint part and a second mortise and tenon joint part.

5. The quick disconnect interface structure of claim 4,

a threaded hole is formed in the first joggle joint or the second joggle joint;

a through hole aligned with the threaded hole is formed in the first connecting part or the second connecting part;

a threaded fastener is threaded through the through hole into the threaded hole when the first and second components are in a secured state.

6. The quick disconnect interface structure of claim 1,

the first connecting part is detachably connected with the first component, and the second connecting part is detachably connected with the second component.

7. The quick disconnect structure of claim 1, wherein the first connection portion is bonded to the first member and the second connection portion is bonded to the second member.

8. The quick disconnect interface structure of claim 7, wherein the bonding is achieved by an epoxy glue.

9. The quick disconnect interface structure of claim 3, wherein the electrical connectors comprise power connectors and signal wire connectors.

10. An unmanned aerial vehicle, wherein the quick-release interface structure of any of claims 1-9 is used, and the first component is a wing and the second component is a boom.