KR101669007B1

KR101669007B1 - The drone

Info

Publication number: KR101669007B1
Application number: KR1020150182787A
Authority: KR
Inventors: 최종필
Original assignee: 최종필
Priority date: 2015-12-21
Filing date: 2015-12-21
Publication date: 2016-10-25

Abstract

In the unmanned airplane in which a plurality of arms are provided on four sides of a gas and the wings are rotated by a motor at the ends of the arms, motors and wings coupled to the arms and arms are separated from and stored in the gas, So that it is easy to manufacture and is formed so that the separated fixed bodies overlap each other and the lever for holding the arm between them is rotated so as to be pivoted The present invention relates to an arm coupling device of a unmanned airplane, which is easy to install and assemble.
To this end, the present invention provides an arm coupling device for an unmanned airplane in which a plurality of arms having wings rotated by a motor are provided at free ends, and fixed ends of the arms are fitted to the four sides of the base, Wherein the fixing body is formed with an insertion hole into which the fixed end of the arm is inserted; A pair of levers are rotatably provided on both sides of the fixed body, and a part of each of the levers is protruded from the fitting hole so as to be engaged with an engaging groove formed on both sides of the fixed end of the arm, And to be coupled to the body.

Description

[0001] The present invention relates to an arm coupling device for a drone,

The present invention relates to an arm coupling device for an unmanned airplane, and more particularly, to an arm coupling device for an unmanned airplane, in which a plurality of arms are provided on four sides of a base, To an arm coupling device of an unmanned airplane capable of reducing storage and transportation volume by allowing motors and wings to be separated from and stored in a gas.

In recent years, the need for unmanned aerial vehicles is increasing in environments where people can not work. Unmanned aerial vehicles (UAVs) are increasingly required to provide information on enemy cloaking in aerial image acquisition, aerial photographing, powerline inspection or battlefield situations in disaster / disaster areas, or to carry out reconnaissance missions and surveillance missions through unmanned aerial vehicles .

A conventional unmanned airplane has been disclosed in Japanese Patent No. 1366208. This allows the user to conveniently move, assemble, and disassemble the air vehicle, and the first and second fixing members formed on the lower fixing member can be used for the landing gear unit And the landing gear is firmly fixed to the lower fixing part, thereby preventing further shaking or distortion when the airplane is in flight.

Domestic patent No. 1042200 is also a unmanned airplane, which reduces the weight of the arm connecting the airframe and the rotor to reduce the weight of the aircraft. However, these conventional patents are disadvantageous in that they occupy a large storage volume when the unmanned airplane is not used, because the rotor arm is installed in the unfolded state. Also, when the unmanned airplane is transported, it requires a lot of space for loading in the vehicle, so that the number of passengers is limited.

The inventor of the present invention has registered the unmanned airplane with the patent No. 1456035 in view of this. The arm fixing member is provided between the upper and lower plates of the base so as to reduce the storage width of the arms extended to the four sides of the base. The arm connecting member is provided on the rotor arm. The arm connecting member and the arm fixing member are provided with means for transferring lifting force generated when the wing is rotated to the gas through the rotor arm.

However, the registered patent of the present inventor has a problem that since the arm is folded to the lower part of the gas, the height is rather increased, so that the storage volume can not be reduced significantly, and in particular, it is troublesome when the driver directly moves the gas and moves the long distance.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an air conditioner which has a plurality of arms in four directions of a gas and has wings rotated by motors at the ends of the arms, The motor and the wings are separated from and stored in the gas, the storage volume can be reduced, and the fixing body for coupling the arm to the gas can be separated and formed symmetrically with each other, And a lever for holding the arm between them is pivoted so as to be rotatable, thereby facilitating assembly of the arm coupling device of the unmanned airplane.

To this end, the present invention provides an arm coupling device for an unmanned airplane in which a plurality of arms having wings rotated by a motor are provided at free ends, and fixed ends of the arms are fitted to the four sides of the base, Wherein the fixing body is formed with an insertion hole into which the fixed end of the arm is inserted; A pair of levers are rotatably provided on both sides of the fixed body, and a part of each of the levers is protruded from the fitting hole so as to be engaged with an engaging groove formed on both sides of the fixed end of the arm, And to be coupled to the body.

According to the present invention, since the arm connecting the gas and the motor is completely separated from the gas, the volume of the unmanned airplane can be reduced. It is also possible to mount motors with different outputs on a single body, the length of the arms varying in proportion to the output of the motor and the number of revolutions of the wing. That is, when assembling a small output unmanned airplane, a short arm can be used compared to a large output unmanned airplane.

In the present invention, the fixing body is provided as means for fixing the arm to the base, which is divided into two. In this case, the two fixed bodies may be injection-molded in the same mold, or may be continuously produced automatically in a CNC machine tool. After producing one model like this, the two fixed bodies overlap each other and the lever is interposed between them. When the arm is inserted into the fixing body, grooves formed on the outer circumferential surfaces of both sides of the arm are caught by the side surfaces of the levers, and the arms are caught in the fixing body State.

Therefore, one embodiment of the present invention is advantageous in that productivity can be improved and injection mold ratio can be reduced since a single fixed body is continuously produced and then a pair is assembled so as to face each other.

1 is a perspective view of an unmanned airplane of the embodiment of the present invention;
2 is an exploded perspective view of the arm coupling device of the unmanned airplane of the embodiment of the present invention.
3 is a front cross-sectional view of the arm coupling device of the embodiment of the present invention
4 is a side cross-sectional view of the arm coupling device of the embodiment of the present invention
5 is a cross-sectional view of the arm coupling device of the embodiment of the present invention,

1 to 5, the unmanned airplane of the embodiment of the present invention is provided with a base 10 in which a light weight and thin bottom plate 11 and a bottom plate 12 are separated from each other. A fixing body 30 for fixing the arm 20 is provided on the four corners of the upper plate 11 and the lower plate 12 corresponding to each other.

The upper surface 34 of the fixed body 30 is screwed to the upper plate 11 and the lower surface 35 is screwed to the lower plate 12. The fixing body 30 has a hexagonal fitting hole 31 formed at the center thereof. A pair of levers 40 are rotatably provided on both sides of the fitting hole 31 on one side surface. The lower end of the lever 40 is hinged to the side surface of the fixed body 30 by a pin 41 and the upper end of the lever 40 is connected to the upper surface 34 of the fixed body 30 and the elongated hole 13 formed in the upper plate 11 And projects to the upper portion of the base 10. And is urged toward the fitting hole 31 by the spring 42. [ The upper end of the projected lever 40 is fingered so that the side surface of the lever 40 is separated from the fitting hole 31 or engaged with the lever operation member 50 to be described later.

The arm 20 is provided with a motor 21 having a blade 22 at its free end and a locking groove 23 on both sides of which the side of the lever 40 is inserted. At this time, it is preferable that the fixed end of the arm 20 is formed in a rectangular shape corresponding to the fitting hole 31.

The fixed body 30 is divided into two parts in order to operate the lever 40. The lever body 40 is formed in a single shape in order to lower the production cost and increase the productivity, It is made in a built-in form. To this end, the fastening body (30) of the embodiment of the present invention is provided with the fastening piece (32) and the projecting fastening piece (33) on both sides of the opposite surface. The fastening piece 32 is at the same height as the opposite surface, and the projecting fastener piece 33 protrudes beyond the opposing surface to the height of the lever 40 or more.

Accordingly, when the bolts are fastened to the fastening piece 32 and the projecting fastening pieces 33 by making the pair of fastening bodies 30 to be in contact with each other and striking the projecting fastening pieces 33 to each other, A space in which the lever 40 is placed is provided.

The upper plate 11 of the base 10 is provided with a lever operation member 50 for operating the protruding tip of the lever 40. The lever actuating member 50 is provided with a guide body 51 bolted to the upper plate 11 and a lever actuating piece 52 is provided between the bottom surface of the guide body 51 and the upper plate 11 do. The upper part of the guide body 51 is slidably inserted with the guide piece 54 and the knob 56 is engaged with the upper end of the guide piece 54. At this time, the handle 56, the guide piece 54, and the lever operation piece 52 are coupled together by a bolt, and the guide body 51 includes a spring 55 for pushing the guide piece 54.

The lever operating member 52 is composed of a sloped surface 53 inclined to one side so that the lever operating member 50 contacts the upper surface of the upper plate 11 in a state in which the inclined surface 53 is in contact with the upper end of the lever 40, .

The arm coupling device of the embodiment of the present invention thus constructed is assembled and operated as follows. First, a pair of divided fixed bodies 30 are assembled in a state in which the opposed faces of the pair of divided fixed bodies 30 are in contact with each other. At this time, a pair of levers 40 are rotatably coupled to the one of the opposed faces. A pair of fixed bodies 30 are inserted between the upper plate 11 and the lower plate 12 of the base 10 and are fastened by bolts. At this time, the lever 40 projected from the upper surface 34 of the fixed body 30 Is inserted into the long hole (13) formed in the upper plate (11) and protruded to the upper portion of the base body (10).

The lever operating member 50 is assembled to the upper plate 11. The guide body 51 of the lever actuating member 50 is positioned between the upper ends of a pair of levers 40 protruding from the upper plate 11 and the lever actuating piece 52 are brought into contact with the upper ends of the levers 40, At this time, the side surface of each lever (40) protrudes inside the fitting hole (31) of the fixed body (30).

Then, the fixed end of the arm 20 is inserted into the fitting hole 31 of the fixed body 30. At this time, the fixed end is no longer held by the side surface of the lever 40. At this time, the lever 56 is moved by sliding the knob 56 to move the lever operating piece 52 together. In this process, The side of the lever 40 is released from the fitting hole 31 when the upper end of the lever 40 is pushed to open on both sides. At this time, the fixed end of the arm 20 is inserted. When the engaging groove 23 formed on both sides of the fixed end coincides with the side surface of each lever 40, the arm 20 no longer enters. At this time, when the knob 56 is released, The pair of levers 40 are moved in the direction in which they are narrowed by the spring 42 while the inclined surfaces 53 of the lever operating pieces 52 are displaced from the upper ends of the levers 40, The side surface of the lever 40 is fitted into the locking groove 23 so that the arm 20 is fixed to the fixing body 30 in a locked state.

In order to disassemble the arm 20 from the base 10, the arm 20 should be reversed in order. First, the handle 56 is pulled so that the inclined surface 53 pushes the tip of the lever 40, The lever 40 moves away from the engagement groove 23. At this time, when the arm 20 is pulled out from the fixed body 30, the arm 20 is separated from the base 10.

10: gas 11: top plate
12: Lower plate 13: Long hole
20: arm 21: motor
22: wing 23: latching groove
30: fixed body 31: insertion hole
32: fastening piece 33:
40: lever 41: pin
42: spring 50: lever operating member
51: guide body 52: lever operating piece
53: inclined surface 54: guide piece
55: spring 56: handle

Claims

A plurality of arms having wings rotated by a motor at a free end thereof and having a fixed body coupled to the four corners of the body, wherein the fixed body is provided with an insertion hole into which the fixed end of the arm is inserted, In the arm coupling device of the present invention,
A pair of levers are rotatably provided on both sides of the side surface of each of the fixed bodies so that a part of each of the levers is protruded into the fitting hole;
Wherein a locking groove is formed on both sides of the fixed end of the arm so that a part of the lever is engaged with the locking groove to engage the arm with the fixed body.

The method according to claim 1,
Each of the levers is provided with a pin at a lower end thereof and a spring is provided at an intermediate point thereof so that the levers are pressed toward each other with respect to the pin;
Wherein an upper end of each of the levers is protruded from an upper portion of the base through the fixing body so as to protrude when the lever is operated.

The method according to claim 1,
The fixing body is bisected so as to house the lever at an intermediate point. The opposite surfaces of the fixing body are provided with fastening pieces staggered with each other. The fastening pieces are provided with staggered fastening pieces staggered with the fastening pieces. Wherein a space is formed at an intermediate point of the fixed body so that the lever is embedded.

The method according to claim 2 or 3,
A pair of long holes formed in the upper plate of the base so as to protrude from the upper end of the lever, and a guide body is provided between the long holes;
Wherein the guide body has a lever operating piece on an undersurface of the guide body and having an inclined surface corresponding to an upper end of each lever, and a handle coupled to the lever operating piece is provided on an upper surface of the guide body, Wherein the levers of both sides are rotated about the pin to be separated from the fitting hole and the engaging groove.