KR20210055974A - Apparatus for fastening loading box on unmanned aerial vehicles - Google Patents

Abstract

The present invention is to provide a loading box fastening device for an unmanned aerial vehicle that can drop a transport item transported by an unmanned aerial vehicle according to an operator's instruction in the air. According to an embodiment of the present invention, a loading box fastening device of an unmanned aerial vehicle comprises: a loading box in which a receiving portion is formed to accommodate a transport item, and at least one surface is open; a mounting unit for vertically rotatably mounting the loading box on the outside of the unmanned aerial vehicle; a driving unit including a motor driven according to a control signal of a remote controller; a locking unit for fastening or unlocking the unmanned aerial vehicle and the loading box by the driving unit; and a fixing cable including a cable locking ring having one end fixed to the loading box and the other end fastened to the locking unit, and surrounding the open surface of the loading box when fastening.

Description

Apparatus for fastening loading box on unmanned aerial vehicles

The present invention relates to a loading box fastening device for an unmanned aerial vehicle, and more particularly, to a loading box fastening device in which transports are dropped according to an operator's instruction during flight of an unmanned aerial vehicle and take flight stability into account.

An unmanned aerial vehicle (UAV; hereinafter referred to as'drone') is a vehicle that flies by itself by following a program entered in advance by remote control from the ground without a pilot or by recognizing and judging the surrounding environment by the vehicle itself. Drones are advancing very rapidly because of the advantages of being able to conveniently, quickly and safely perform missions that are dangerous to pilots, are limited or contaminated by human capabilities, and are difficult to access, or that require constant boring for a long time.

For example, unmanned aerial vehicles are expected to go beyond simple reconnaissance missions at disaster and disaster sites to deliver medical supplies and aids to survivors and victims at disaster and disaster sites. It is expected to be utilized.

Currently, research on the unmanned aerial vehicle itself is actively being conducted, and at the same time, attempts to expand the scope of use of the unmanned vehicle by attaching various tools suitable for the user's use to the unmanned vehicle are also ongoing. Technology development related to realistic carriers capable of transporting necessary goods is insufficient.

It is an object of the present invention to provide an unmanned aerial vehicle loading box fastening device capable of dropping a transport product transported by an unmanned aerial vehicle according to an operator's instruction from the air.

The problem to be solved by the present invention is not limited to the problem(s) mentioned above, and another problem(s) not mentioned will be clearly understood by those skilled in the art from the following description.

A loading box fastening device for an unmanned aerial vehicle according to an embodiment of the present invention includes a loading box having a receiving portion for receiving a transport product formed therein, and having at least one open surface; Mounting unit for vertically rotatably mounting the loading box on the outside of the unmanned aerial vehicle; A driving unit including a motor driven according to a control signal of the remote controller; A locking unit for fastening or releasing the unmanned aerial vehicle and the loading box by the driving unit; And a fixing cable having a cable locking ring having one end fixed to the loading box and the other end fastened to the locking portion, and surrounding an open surface of the loading box when fastened.

The loading box fastening device of the unmanned aerial vehicle further includes a stopper formed to extend outwardly on both sides of the loading box and controlling the angle of rotation of the unmanned aerial vehicle by the skid of the unmanned aerial vehicle when the loading box is rotated.

The loading box has an upper surface and one side extending from the upper surface open, and a locking protrusion on a lower surface vertically meeting the open side surface.

The mounting portion includes a rotation shaft disposed outside the unmanned aerial vehicle and a bracket disposed at an outer lower portion of the loading box and having a coupling hole H1, and the rotation shaft is coupled to be retracted into the coupling hole H1, so that the loading box is connected to the It is mounted rotatably on an unmanned aerial vehicle.

The locking unit includes a locking shaft connected to the driving unit and a loading box locking ring fixed to the unmanned aerial vehicle, and the locking shaft is rotated by the driving unit to be fastened or disengaged with the loading box locking ring and the cable locking ring.

The locking shaft is rotated by the driving unit so that the loading box locking ring and the cable locking ring are simultaneously disengaged.

The mounting portion is disposed close to the center of gravity of the unmanned aerial vehicle in consideration of flight safety when the transport is dropped in the air during flight.

According to an embodiment of the present invention, the loading box fastening device of an unmanned aerial vehicle enables an operator to drop a transport product in a timely manner by operating a remote controller.

According to an embodiment of the present invention, the device for fastening a loading box of an unmanned aerial vehicle may improve flight safety when a transport is dropped in the air during flight.

According to an embodiment of the present invention, by dropping the transport product in a diagonal direction to the ground, collision between the transport product and the landing gear skid can be prevented.

1 is a perspective view showing an unmanned aerial vehicle equipped with a loading box fastening device for an unmanned aerial vehicle according to an embodiment of the present invention.
2 is a view showing a loading box and a transport product according to an embodiment of the present invention.
3 is a view showing a loading box fastening device according to an embodiment of the present invention.
4 is a view for explaining the unlocking of the locking device according to an embodiment of the present invention.
5 is a view for explaining the fastening of the locking device according to an embodiment of the present invention.
6 is a front view of an unmanned aerial vehicle equipped with a loading box fastening device for an unmanned aerial vehicle according to an embodiment of the present invention.
7 is a view showing a rotating state of the loading box fastening device according to an embodiment of the present invention.
8 is a view showing a state of disengagement of a fixed cable of a loading box fastening device according to an embodiment of the present invention.
9 and 10 are views showing a state of dropping a transport product according to an embodiment of the present invention.

Before describing various embodiments of the present invention in detail, it will be appreciated that the application is not limited to the details of configurations and arrangements of elements described in the following detailed description or illustrated in the drawings. The present invention can be implemented and practiced in different embodiments, and can be carried out in various ways. Also, device or element orientation (eg "front", "back", "up", "down", "top", "bottom" The expressions and predicates used herein with respect to terms such as ", "left", "right", "lateral"), etc. are used only to simplify the description of the present invention, and related devices Or you may find that the element simply indicates or does not mean that it should have a specific orientation. Further, terms such as “first” and “second” are used in this application and the appended claims for purposes of explanation and are not intended to represent or imply any relative importance or spirit.

Advantages and/or features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments are intended to complete the disclosure of the present invention, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification.

Hereinafter, a loading box fastening device 100 mounted on an unmanned aerial vehicle according to the present invention will be described in more detail with reference to the accompanying drawings.

1 is a perspective view showing an unmanned aerial vehicle equipped with a loading box fastening device for an unmanned aerial vehicle according to an embodiment of the present invention, and FIG. 2 is a view showing a loading box and a transport product according to an embodiment of the present invention.

In FIG. 1, the unmanned helicopter 10 is shown, but the present invention is not limited thereto, and may be a flying vehicle that is not controlled by a person on board and mainly moves by remote control.

The loading box fastening device 100 of the unmanned aerial vehicle according to an embodiment of the present invention is mounted on the outside of the unmanned aerial vehicle 10 to drop the transports 20 accommodated in the loading box 110 individually or simultaneously from the air to the ground during flight. I can make it. The loading box 110 is mounted in a position as close as possible to the center of gravity in consideration of the width and length of the unmanned aerial vehicle and maintains flight stability even if transport items are individually or simultaneously dropped from the air during flight. For example, it may be provided on both sides (left and right) of the unmanned aerial vehicle body in consideration of the center of gravity of the unmanned aerial vehicle 10.

As shown in FIG. 2, the loading box 110 has an upper surface of the receiving unit 115 and one side extending from the upper surface open, and a transport product 20 accommodated in the receiving unit 115 through the open side Will be dropped.

Since the unmanned aerial vehicle is limited in take-off weight, in consideration of the take-off weight, the loading box 110 may be made of a lightweight and durable material such as a carbon composite material.

For example, a loading box fastening device applied to an unmanned helicopter having a 110 kg takeoff weight is manufactured with a total weight of about 1 kg on the left and right sides, and can load 10 kg and a total of 20 kg of transport items on the left and right sides of the unmanned helicopter.

3 is a view showing a loading box fastening device 100 according to an embodiment of the present invention, Figure 4 is a view for explaining the release of the locking device according to an embodiment of the present invention, Figure 5 is the present invention It is a view for explaining the fastening of the locking device according to an embodiment of.

As shown in Fig. 3, the loading box fastening device 100 of the unmanned aerial vehicle according to an embodiment of the present invention includes a loading box 110, a mounting part 120, a driving part 130, a locking part 140, and a fixed cable ( 150).

The loading box 110 includes a receiving portion 115 in which the transport product 20 is accommodated. The loading box 110 is based on a box-shaped rectangle, but may take a streamlined shape in order to reduce the resistance of air received during flight.

In addition, the loading box 110 has an upper surface of the receiving unit 115 and one side extending from the upper surface open, and the receiving unit 115 is driven by the driving unit 130, which will be described in detail later, through the open side. Stored shipments will be dropped.

The loading box 110 is rotatably mounted in the outer vertical direction of the unmanned aerial vehicle 10 through the mounting portion 120.

The loading box 110 may further include a stopper 111 and a locking projection 112. The stopper 111 and the locking jaw 112 will be described later.

The mounting unit 120 includes a bracket 121 having a coupling hole H1 disposed at an outer lower portion of the loading box 110, a rotation shaft 122 disposed outside the unmanned aerial vehicle 10, and a rotation shaft holder 123-1, 123 -2, 123-3). The bracket 121 may be fixed to the loading box 110 by bolting, and the rotation shaft holders 123-1, 123-2, 123-3 may be fixed to the unmanned aerial vehicle 10 by bolting.

The rotation shaft 122 is inserted into the coupling hole H1 of the bracket 121 so that the loading bin 110 is rotatable about the rotation shaft 122. When the loading box 110 mounted on the unmanned aerial vehicle rotates downward around the rotation shaft 122, the storage product 20 accommodated in the loading box 110 is dropped downward. Therefore, the loading box 110 has a surface corresponding to the surface on which the bracket 121 of the loading box 110 is installed so that the rotation direction and the dropping direction coincide with each other are opened.

The driving unit 130 may include a motor driven according to a control signal of the remote controller.

The motor may be a servo motor in which rotation angle and speed control is easy, but the present invention is not limited thereto. The motor uses only standby power when the locking unit 140, which will be described in detail below, is locked.

The locking part 140 fastens or releases the unmanned aerial vehicle 10 and the loading box 110 by driving the driving part 130. The locking part 140 may be provided above the rotation shaft 122. When the locking unit 140 releases the fastening of the unmanned aerial vehicle 10 and the loading box 110, the loading box 110 rotates about the rotation shaft 122.

More specifically, the locking unit 140 has one end connected to the motor of the driving unit 130, the ring cage 141, the locking shaft 142 connected to the other end of the ring cage 141, the outer side of the unmanned aerial vehicle 10 Includes a lock ring (143) fixed to the loading box. The linkage 141 transmits the rotational force of the motor to the locking shaft 142, so that the driving unit 130 can control the rotation angle of the locking shaft 142.

The locking part 140 further includes a bracket 144 that is bolted to the loading box 110 and has a hole H2, and a locking shaft 142 is inserted into the hole H2 of the bracket 144 to be a locking shaft ( 142 is rotatably attached to the loading box (110).

The loading box locking ring 143 has an entrance formed narrower than the length of the inner side of the open area at the entrance of the open area.

As shown in (a) of Figure 4, the locking shaft 142 has a different length in the horizontal and vertical cross-section. The length of the short side (s) of the locking shaft 142 is shorter than the width (W1) of the entrance of the open area of the loading box locking ring 143, and the length of the long side (L) of the locking shaft 142 is the loading box locking ring ( It is longer than the width (W1) of the entrance of the open area of 143), and is less than or equal to the inner diameter of the lock ring 143 of the loading box. Accordingly, the locking shaft 142 may rotate within the loading box locking ring 143, and the locking shaft 142 and the loading box locking ring 143 are fastened or released.

As shown in (a) of Figure 4, the locking shaft 142 rotates while being fastened in the loading box locking ring 143, so that the short side (s) of the locking shaft 142 is of the loading box locking ring 143 It is located in line with the entrance. In addition, the entrance of the loading box locking ring 143 is located in the rotational direction of the loading box 110 (toward the open surface connected to the upper surface). In this case, the locking key and the loading box locking ring 143 are disengaged by the loading box locking ring 143 coming out of the locking shaft 142, and the loading box 110 is rotated around the rotation shaft 122.

Referring to (a) of Figure 5, when the short side (s) of the locking shaft 142 is not located in a straight line with the entrance of the locking ring 144, the locking key and the loading box locking ring 143 are fastened. Thereby, the loading box 110 is fixed to the unmanned aerial vehicle 10.

The fixed cable 150 is for fixing the transport product 20 in the case where the transport product 20 is loaded in the receiving part 115, and one end is fixed to the loading box and the other end is fixed to the locking part 140. It is concluded. To this end, the fixed cable 150 has a cable locking ring 152 at the other end.

The fixed cable 150 is fastened to the cable locking ring 152 so as to surround the transportation product 20, and the transportation product accommodated in the receiving part 115 of the loading box 110 until the fastening is released by the driving unit 130 ( 20) to prevent deviation.

The cable locking ring 152 has an inlet formed in which the inlet of the open area is narrower than the length of the inner side of the open area.

As shown in (b) of Figure 4, the length of the short side (s) of the locking shaft 142 is shorter than the width (W1) of the entrance of the open area of the cable locking ring 152, the locking shaft 142 The length of the long side (L) is longer than the width (W1) of the entrance of the open area of the cable locking ring 152, and is less than or equal to the inner diameter of the cable locking ring 152. Accordingly, the locking shaft 142 may rotate within the cable locking ring 152, and the locking shaft 142 and the cable locking ring 152 are fastened or released.

As shown in (b) of FIG. 4, the locking shaft 142 rotates while being fastened in the cable locking ring 152, so that the short side (s) of the locking shaft 142 is of the cable locking ring 152. It is located in line with the entrance. In addition, when the entrance of the cable locking ring 152 faces the same direction as the position of the loading box locking ring 143, the cable locking ring 152 and the loading box locking ring 143 are simultaneously disengaged when the locking shaft 142 is rotated. do.

In another embodiment of the present invention, the inlet of the cable locking ring 152 is positioned differently from the inlet of the loading box locking ring 143, for example, by positioning it toward the top surface, according to the rotation of the locking shaft 142 The locking shaft 142 and the cable locking ring 152 may be sequentially released.

Referring to FIG. 5B, when the short side (s) of the locking shaft 142 is not positioned in a straight line with the entrance of the cable locking ring 152, the locking key and the cable locking ring 152 are fastened. Thereby, the fixed cable 151 is fastened to the locking part 140.

6 is a front view of an unmanned aerial vehicle equipped with a loading box fastening device for an unmanned aerial vehicle according to an embodiment of the present invention, and FIG. 7 is a view showing a state in which the loading box fastening device according to an embodiment of the present invention is rotated. 8 is a view showing the disengaged state of the fixed cable of the loading box fastening device according to an embodiment of the present invention. And, Figures 9 and 10 are views showing the state of dropping a transport according to an embodiment of the present invention.

As shown in Figure 6, the unmanned aerial vehicle 10 takes into account the center of gravity of the unmanned aerial vehicle 10 and flies in a state in which loading boxes 110 containing transport goods are disposed on both sides of the unmanned aerial vehicle 10. In this case, it is possible to minimize the change in the center of gravity of the unmanned aerial vehicle when transporting goods individually or simultaneously.

As shown in FIG. 7, by controlling the driving unit 130 according to a control signal of the remote controller to disengage the locking unit 140 and the loading box locking ring 143, the loading box 110 is rotated.

When the loading bin 110 rotates, the stoppers 111 formed to extend outwardly on both sides of the loading bin 110 are caught by the landing skid S of the unmanned aerial vehicle, thereby limiting the rotation angle of the loading bin 110.

Next, as shown in FIG. 8, by controlling the driving unit 130 according to the control signal of the remote controller, the locking unit 140 and the cable locking ring 152 are disengaged, and the transported product 20 is dropped.

As shown in Figs. 9 and 10, at the time of delivery, the transport product 20 in a diagonal direction to the ground, not in the direction of gravity, by a locking jaw 112 formed on the lower surface that meets the open side of the loading box 110 vertically. The release angle of occurs.

With the loading box fastening device according to an embodiment of the present invention, a user can remotely drop a transport item in the air at a desired time point during flight. In addition, it is possible to prevent a collision between the transport product and the landing gear skid.

Although the specific embodiments according to the present invention have been described so far, various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by being limited to the described embodiments, and should be defined not only by the claims to be described later, but also by the claims and their equivalents.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited to the above embodiments, which is, if one of ordinary skill in the field to which the present invention belongs, various modifications and Transformation is possible. Therefore, the idea of the present invention should be grasped only by the claims set forth below, and all equivalent or equivalent modifications thereof will be said to belong to the scope of the idea of the present invention.

10: Unmanned vehicle
20: transport goods
100: loading box fastening device
110: loading box
120: mounting part
130: drive unit
140: locking part
150: fixed cable

Claims (7)

A loading box in which a receiving portion for receiving a transport product is formed and at least one surface thereof is opened;
Mounting unit for vertically rotatably mounting the loading box on the outside of the unmanned aerial vehicle;
A driving unit including a motor driven according to a control signal of the remote controller;
A locking unit for fastening or releasing the unmanned aerial vehicle and the loading box by the driving unit; And
A fixed cable having a cable locking ring having one end fixed to the loading box and the other end fastened to the locking portion, and surrounding an open surface of the loading box when fastened;
Loading box fastening device of the unmanned aerial vehicle comprising a.
The method of claim 1,
A stopper that is formed to extend outward on both sides of the loading box and controls the angle of rotation of the loading box by the skid of the unmanned aerial vehicle when the loading box is rotated.
Loading box fastening device of the unmanned aerial vehicle further comprising a.
The method of claim 1,
The loading box is a loading box fastening device for an unmanned aerial vehicle having an upper surface and one side extending from the upper surface open, and having a locking step on a lower surface vertically meeting the open side surface.
The method of claim 1,
The mounting portion includes a rotation shaft disposed outside of the unmanned aerial vehicle and a bracket disposed at an outer lower portion of the loading box and having a coupling hole, and the rotation shaft is coupled to be inserted into the coupling hole, so that the loading box is rotatable to the unmanned aerial vehicle. Fastening device for unmanned aerial vehicle to be installed.
The method of claim 1,
The locking unit includes a locking shaft connected to the driving unit and a loading box locking ring fixed to the unmanned aerial vehicle,
The locking shaft is rotated by the driving unit to fasten or disengage the loading box locking ring and the cable locking ring.
The method of claim 5,
The locking shaft is rotated by the driving unit to unlock the loading box locking ring and the cable locking ring at the same time as the loading box fastening device of the unmanned aerial vehicle.
The method of claim 1,
The mounting unit is a loading box fastening device for an unmanned aerial vehicle that is disposed close to the center of gravity of the unmanned aerial vehicle in consideration of flight safety when a transport is dropped in the air during flight.

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