CN205499317U - Many rotor unmanned aerial vehicle horn and fuselage connection structure - Google Patents

Abstract

The connection structure between the arm and the fuselage of the multi-rotor UAV includes the connected arm connector and the fuselage connector. The direction of the flat key is provided with a female PCB board, a female plastic base and a first retaining spring in sequence. The female plastic base is connected to the first hollow shaft through a key, and the female PCB board is fixed with a current passing through the female plastic base. Needle female head; the fuselage connector includes a second hollow shaft, and in the second hollow shaft, a male PCB board, a male plastic base and a second circlip are sequentially arranged in the direction of the first flat key from a rectangular aluminum alloy The female head of the current needle is connected with the male head of the current needle, the first flat key groove is matched with the first flat key, and a threaded pipe is set outside the connecting piece of the machine arm and the connecting piece of the fuselage. The utility model makes disassembly and assembly of the machine arm and the fuselage simple, reliable in structure, occupies a small volume when the drone is carried, and hides the circuit inside the machine arm and the fuselage, which is beautiful and safe.

Description

Connection structure between arm and fuselage of multi-rotor UAV

Technical field:

The utility model relates to a connection structure between an arm and a fuselage of a multi-rotor UAV.

Background technique:

With the rapid development of social economy and science and technology, the demand for the use of drones is increasing, and the scope of use is becoming wider and wider. Before use, drones are generally carried in protective boxes. Considering the portability of the UAV, in order to reduce the carrying volume, the arms are folded in an umbrella shape. However, after the arm is folded many times, the folding parts are prone to empty positions, which will cause the fuselage to vibrate and affect the flight reliability of the drone. Unfortunately, even if the arms are folded in an umbrella shape, the drone is still bulky after folding, and the portability is not good. In addition, the umbrella-folding UAVs at this stage are wired in the round tube of the arm, and the lines are exposed outside after folding. The exposed lines will inevitably rub against the box during loading and unloading, which is not conducive to line protection, and it is also beautiful and safe. Sex is poor.

Utility model content:

The purpose of this utility model is to aim at the above-mentioned shortcomings existing in the prior art, and to provide a connection structure between the arm and the fuselage of a multi-rotor UAV, which is simple to disassemble and assemble, and has a reliable structure. Inside the machine arm and the fuselage, it is both beautiful and safe, and solves the problems existing in the prior art.

The technical scheme that the utility model adopts for solving the problems of the technologies described above is:

The connecting structure between the arm and the fuselage of the multi-rotor UAV includes connected arm connectors and fuselage connectors, the arm connector includes a first hollow shaft, and a shaft shoulder is provided on the outside of the first hollow shaft, Several connection holes are arranged on the first hollow shaft on one side of the shaft shoulder, and a first flat key is provided on the outer surface of the first hollow shaft on the other side of the shaft shoulder. The direction of the flat key is provided with a female PCB board, a female plastic base and a first retaining spring in sequence. The female plastic base is connected to the first hollow shaft through a key, and the female PCB board is fixed with a current passing through the female plastic base. Needle female head; the fuselage connector includes a second hollow shaft, an external thread is provided on the outer surface of the second hollow shaft, and a rectangular aluminum alloy part with a hollow round protrusion is provided on one side of the second hollow shaft. The inner surface of the second hollow shaft is provided with a first flat keyway. In the second hollow shaft, a male PCB board, a male plastic base and a second retaining spring are sequentially arranged from a rectangular aluminum alloy to the direction of the first flat key. The base is connected with the second hollow shaft through a key, and the male PCB board of the male head is fixed with the male head of the current needle passing through the plastic base of the male head; the female head of the current needle is connected with the male head of the current needle, and the first flat key groove is connected with the first flat key For cooperating installation, a threaded pipe is set on the outside of the arm connector and the fuselage connector, the threaded pipe is provided with an internal thread that matches the thread on the second hollow shaft, and the inner side of one end of the threaded pipe is provided with a shoulder that abuts against the shaft shoulder.

Compared with the prior art, the utility model has the advantages of simple disassembly and assembly, as long as the protrusion of the connecting part of the machine arm is aligned with the groove on the connecting part of the fuselage, pushed to the limit position, and the knurled threaded sleeve is tightened , to complete the rapid assembly of the arm and the fuselage. When disassembling, unscrew the threaded sleeve to separate the arm from the fuselage. When the drone is carried, it occupies a small volume. The storage volume is small, and the portability is good; the structure is reliable, using a clamping structure and supplemented by a spring inside and a threaded sleeve outside, so the whole is not easy to loosen; the wiring is hidden inside the arm and the fuselage, which is both beautiful and safe.

Description of drawings:

Fig. 1 is a schematic diagram of the first structure of the utility model.

Fig. 2 is a second structural schematic diagram of the present invention.

In the figure, 1. First hollow shaft, 2. Shaft shoulder, 3. Connecting hole, 4. First flat key, 5. Female PCB board, 6. Female plastic base, 7. First retaining spring, 8. Current needle female head, 9. Second hollow shaft, 10. Rectangular aluminum alloy part, 11. First flat keyway, 12. Male PCB board, 13. Male plastic base, 14. Current needle male head, 15. Thread Pipe, 16, shoulder, 17, the second snap ring.

detailed description:

In order to clearly illustrate the technical features of this solution, the utility model will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

As shown in Figure 1-2, the connection structure between the arm and the fuselage of the multi-rotor UAV includes the connected arm connector and the fuselage connector. The arm connector includes the first hollow shaft 1, and the first The outer side of the hollow shaft 1 is provided with a shaft shoulder 2, and several connection holes 3 are provided on the first hollow shaft 1 on one side of the shaft shoulder 2, and a first hollow shaft is provided on the outer surface of the first hollow shaft on the other side of the shaft shoulder 2. The flat key 4 is provided with a female PCB board 5, a female plastic base 6 and a first retaining spring 7 in the first hollow shaft 1 from the connecting hole 3 to the first flat key 4, and the female plastic base 6 passes through the key. Connected with the first hollow shaft 1, the female PCB board 5 is fixed with a current needle female head 8 passing through the female plastic base 6; the fuselage connector includes a second hollow shaft 9, and the second hollow shaft 9 The outer surface is provided with external threads, and the second hollow shaft 9 is provided with a rectangular aluminum alloy part 10 with a hollow circular protrusion. The inner surface of the second hollow shaft 9 is provided with a first flat keyway 11. On the second hollow shaft In 9, a male PCB board 12, a male plastic base 13 and a second retaining spring 17 are sequentially arranged in the direction of the first flat key from the rectangular aluminum alloy part 10, and the male plastic base 13 is connected with the second hollow shaft 9 through a key. The male PCB board 12 is fixed with a current needle male 14 passing through the male plastic base 13; the current needle female 8 is connected to the current needle male 14, and the first flat key groove 11 is installed in cooperation with the first flat key 4, A threaded tube 15 is set on the outside of the arm connector and the fuselage connector. The threaded tube 15 is provided with an internal thread that matches the thread on the second hollow shaft 9. The inner side of one end of the threaded tube is provided with a platform that abuts against the shaft shoulder 2. shoulder 16. The current pin female 8 and the current pin male 14 are connected to provide current and control signals for the motor; the first snap spring 7 is fixed in the corresponding groove of the arm connector to prevent the female plastic base 6 from axially movement; the second circlip 17 is fixed in the corresponding groove of the fuselage connector to prevent the axial movement of the male plastic base 13; knurling can be provided on the outside of the threaded pipe 15, which is beneficial to the threaded pipe 15 Tighten or loosen operation.

During use, the machine arm connecting piece is connected with the machine arm through the connecting hole 3, the fuselage connecting piece is connected with the fuselage through the rectangular aluminum alloy part 10, and the first flat key 4 on the machine arm connecting piece is connected with the fuselage connecting piece. Align the first flat keyway 11, push it to the limit, tighten the threaded sleeve 15, and complete the quick assembly of the machine arm and the fuselage. When disassembling, unscrew the threaded sleeve 15 to separate the machine arm and the fuselage.

The above-mentioned specific implementation manners cannot be regarded as limitations on the protection scope of the present utility model. For those skilled in the art, any alternative improvements or transformations made to the embodiments of the present utility model fall within the protection scope of the present utility model.

The parts of the utility model that are not described in detail are the known techniques of those skilled in the art.

Claims (1)

1. The multi-rotor unmanned aerial vehicle arm and the fuselage connection structure, it is characterized in that: comprise the connecting piece of machine arm and fuselage connecting piece, described machine arm connecting piece comprises the first hollow shaft, in the first hollow shaft A shaft shoulder is provided on the outside, several connecting holes are provided on the first hollow shaft on one side of the shaft shoulder, and a first flat key is provided on the outer surface of the first hollow shaft on the other side of the shaft shoulder. From the connecting hole to the direction of the first flat key, a female PCB board, a female plastic base and a first retaining spring are sequentially arranged. The female plastic base is connected to the first hollow shaft through a key, and the female PCB is fixed with a through The current needle female head of the female head plastic base; the fuselage connector includes a second hollow shaft, an external thread is provided on the outer surface of the second hollow shaft, and a rectangular shape with a hollow circle protrusion is provided on one side of the second hollow shaft The aluminum alloy part is provided with a first flat keyway on the inner surface of the second hollow shaft. In the second hollow shaft, a male PCB board, a male plastic base and a second Circlip, the plastic base of the male head is connected with the second hollow shaft through a key, and the male head of the current needle passing through the plastic base of the male head is fixed on the PCB of the male head; the female head of the current needle is connected with the male head of the current needle, and the first flat The keyway is installed in cooperation with the first flat key, and a threaded pipe is set on the outside of the arm connector and the fuselage connector. The threaded pipe is provided with an internal thread that matches the thread on the second hollow shaft. abutting shoulders.