KR101885851B1 - Drone for cleaning - Google Patents

Abstract

A cleaning dron is disclosed.
According to an embodiment of the present invention, A lift generating unit provided at a lower portion of the drone main body, the lift generating unit providing lifting force for floating in the air; And a cleaning dron disposed on the upper portion of the drones body and including a cleaning unit provided to clean the target object.

Description

{DRONE FOR CLEANING}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cleaning dron for cleaning a ceiling which is not reachable by a person by utilizing a remotely controlled drones. More particularly, And a cleaning unit for cleaning the ceiling are disposed on the upper portion of the drone body to clean the object easily and safely.

The drones, which are remotely controlled by the wireless communication method, were initially developed for military use and were used for simple shooting practice. However, as the electronic communication technology continues to develop, the drones are being widely used not only for military use but also for various other fields.

Generally, the drone may include a plurality of fans for outputting lift, a battery for supplying power to the fans, and a control unit. Here, the fan may be composed of a motor generating a rotational force by electric power supplied from a battery, and a propeller connected to a drive shaft of the motor.

These drones have recently been used in various disasters and accidents or in jungles, remote areas, or volcanic areas that are not easily accessible by people, and are used to capture the situation on the spot or to obtain lifesaving or broadcast images. It is used for various purposes such as operating for commercial purposes, or for security and control services in place of surveillance cameras.

On the other hand, when cleaning ceilings of industrial structures such as factories or high structures that are out of the reach of human hands, workers have conventionally cleaned the ceiling using ladder or ladder cars.

However, such ceiling cleaning not only causes safety accidents such as a worker crash, but also can not be cleaned completely due to limitations of ceiling approach. In addition, the operator may directly inhale the fine dust generated during cleaning, which may cause health problems.

As a countermeasure against this problem, there is a demand for a method of safely and easily performing a ceiling cleaning on behalf of a worker by putting the recently used dron into a ceiling cleaning site.

Korean Patent Laid-Open No. 10-2016-129786 (published on November 09, 2016) Korean Patent Publication No. 10-2014-060901 (published on May 21, 2014)

The embodiments of the present invention provide a cleaning dron which can perform cleaning of a target object more safely and easily while preventing a propeller of a dron from colliding with a target object when cleaning a target object such as a ceiling using a remote controlled drones .

According to an embodiment of the present invention, A lift generating unit provided at a lower portion of the drone main body, the lift generating unit providing lifting force for floating in the air; And a cleaning unit disposed on the upper portion of the drone body, the cleaning unit being provided to clean the object.

The drone body may further include: a first frame provided in a beam shape; And a second frame disposed in a direction crossing the first frame and provided in a beam shape.

Here, the drones may be provided at a position where the first frame and the second frame intersect with each other, and may be provided at positions that do not interfere with the lift generating unit. When the drones are landed, And a leg portion spaced apart from the leg portion.

The leg portion may be elastically deformable so as to absorb an impact upon landing of the drones, and may be provided in a curved shape.

Also, the lift generating unit may include a flying motor installed downwardly at a lower portion of the drone main body; And a propeller coupled to a rotating shaft of the flight motor and disposed below the drone body.

The cleaning unit may further include: a cleaning housing provided on an upper portion of the drone body; A cleaning motor built in the cleaning housing and generating power; A power transmission unit connected to the cleaning motor to transmit power; And a friction cleaning portion connected to the power transmission portion and rotated at the top of the cleaning housing to clean the object by friction.

The power transmission unit may further include: a driving gear connected to a rotating shaft of the cleaning motor; A driven gear that is gear-engaged with the drive gear; A driven shaft extending to both sides of the driven gear and dividing the power transmitted to the driven gear; First and second bevel gears coupled to both ends of the driven shaft to switch a power transmission direction; And first and second cleaning shafts connected to the first and second bevel gears, respectively, for rotating the plurality of friction cleaning units.

Here, the friction cleaning portion may be provided in the form of a brush or a pad.

The cleaning unit may further include: a spraying portion provided at one side of the cleaning housing and spraying a cleaning liquid toward the target object; And a reservoir tank connected to the jetting unit to supply the cleaning liquid and store the cleaning liquid.

The drone body may further include an attitude supporter for assisting the friction eraser in contact with the object in a correct posture.

Wherein the posture supporter includes: a support post extending upward from the drones toward the target object; And a first ball caster rotatably installed at an end of the support column.

The drone body may further include a vibration damping unit capable of absorbing vibration generated when the dron body is in contact with the object.

The vibration damping unit includes: a vibration column extending upward from the drones toward the object; A vibration damping member installed on the vibration column to damp vibrations transmitted to the vibration column; And a second ball caster rotatably installed at an end of the vibration damping member.

According to the embodiments of the present invention, when cleaning a place where a human hand is difficult to reach a target object such as an industrial facility or a ceiling of a high structure by using a dron, the lift generating unit is disposed at a lower portion of the dron body, And the cleaning unit is disposed on the upper portion of the drone main body, so that the ceiling can be cleaned more safely and easily.

1 is a perspective view of a cleaning dron according to an embodiment of the present invention,
Fig. 2 is an exploded perspective view showing the partially separated view of Fig. 1,
3 is a side view showing the structure and structure of a cleaning unit of a cleaning dron according to an embodiment of the present invention,
Figures 4 and 5 are side views in different directions with respect to Figure 1;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, configurations and operations according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE INVENTION The following description is one of many aspects of the claimed invention and the following description may form part of the detailed description of the invention.

However, the detailed description of known configurations or functions in describing the present invention may be omitted for clarity.

While the invention is susceptible to various modifications and its various embodiments, it is intended to illustrate the specific embodiments and the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Terms including ordinals such as first, second, etc. may be used to describe various elements, but the elements are not limited by such terms. These terms are used only to distinguish one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view of a cleaning drone according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of FIG. 1 in a partially separated view.

1 and 2, the cleaning dron 10 according to an embodiment of the present invention may include a drone main body 100, a lift generation unit 200, and a cleaning unit 300.

Means that an embodiment of the present invention includes the configurations listed above, it does not mean that these configurations are merely constituted by these configurations but means that these configurations are basically included and may include other configurations (for example, well known technology well known in the drones) But the detailed description of known technology is omitted in order to prevent dilution of the gist of the present invention.

First, the dron body 100 may include general elements that the dron should have as a whole skeleton of the dron 10, and these general elements are omitted because they are already known.

As shown in FIG. 2, the drone main body 100 of the present embodiment may include a first frame 110 and a second frame 120.

 The first frame 110 may be provided in a beam shape whose cross section is rectangular or circular. The second frame 120 may be disposed in a direction intersecting the first frame 110 and may be provided in the same beam shape as the first frame 110.

1 and 2, the drone main body 100 is configured such that the first frame 110 and the second frame 120 are orthogonal to each other. However, this is merely an example and need not necessarily be limited thereto. In the case where a frame that intersects with the first frame 110 and the second frame 120 is further added according to the needs of an operator, each frame is necessarily orthogonal They can be arranged at the same phase angle as the number of frames.

The drone main body 100 may further include a leg portion 130 which separates the drone main body 100 from the floor at a predetermined height when the drone 10 is landed so that the drone main body 100 does not directly touch the floor have.

The leg 130 may be directly connected to the first frame 110 and the second frame 120. The leg 130 may be directly connected to the first frame 110 and the second frame 120 to prevent overturning of the drone main body 100, It is preferable that the first frame 110 and the second frame 120 are provided at intersections.

At this time, the leg portion 130 is elastically deformable so as to be advantageous in absorbing impact upon landing, and may be provided in a curved shape rather than a straight line. Since the leg portion 130 is provided in a curved shape, it is advantageous in elastic deformation of the drones 10 when the drones 10 land, thereby easily absorbing an impact upon landing.

1 and 2, the lift generating unit 200 is provided at a lower portion of the drone main body 100. As shown in FIG. The lift generating unit 200 is an element that provides a lifting force for floating the dron body 100 in the air and can fly the dron body 100 to a desired place or hover it at a desired place .

Since the dragon 10 according to the present embodiment is inserted into a cleaning operation of an object such as a ceiling, the lift generating part 200 for flying or hovering the drone main body 100 is disposed below the drone main body 100 The problem that the lift generating unit 200 may collide with the ceiling during the cleaning operation can be prevented in advance.

The lift generation unit 200 may include a flywheel 210 and a propeller 220 for generating lift.

The flight motor 210 is an element installed in a downward direction of the lower portion of the drone main body 100. Specifically, the flight motor 210 can be installed to be directed downward at each end of the first frame 110 and the second frame 120 And can be operated by a control signal.

The propeller 220 is rotatably coupled to the rotary shaft of the flight motor 210 and is disposed below the first frame 110 and the second frame 120 of the drone main body 100, 220 can be prevented from hitting the ceiling or superstructure.

When the flywheel 210 is driven by the control signal, the drone main body 100 can perform the cleaning operation by flying or being suspended by lift generated by the propeller 220 while rotating. Since the lift generating unit 200 is a well-known technique generally applied to the drones 10, further description is omitted.

Further, the cleaning unit 300 is disposed on the upper portion of the drone main body 100 to facilitate the cleaning of the ceiling. The cleaning unit 300 may be constructed of an object such as an industrial facility such as a factory or a ceiling of a high- It is a virtually cleanable element.

To further illustrate the cleaning unit 300, reference is further made to Fig. 3 is a side view showing the structure and structure of the cleaning unit 300 of the cleaning drones according to an embodiment of the present invention.

1 to 3, the cleaning unit 300 may include a cleaning housing 310, a cleaning motor 320, a power transmission unit 330, and a friction cleaning unit 340.

The cleaning housing 310 may be provided at an upper portion of the drone main body 100 as an element in which a predetermined accommodation space is formed.

The base plate 101 may be installed at a portion where the first frame 110 and the second frame 120 intersect so that the cleaning housing 310 can be easily installed on the drone main body 100.

The cleaning housing 310 may be installed in the drone main body 100 via a coupler 102 coupled to both ends of the cleaning housing 310. At both ends of the cleaning housing 310, a cylindrical shaft 301 can be protruded with a predetermined length. An annular portion may be formed on one side of the coupler 102 so as to surround the cylindrical shaft 301 and the other side of the coupler 102 may be fixedly coupled to the drone main body 100.

The cleaning motor 320 is built in the cleaning housing 310 and generates power necessary for cleaning the ceiling.

The power transmission unit 330 is connected to the cleaning motor 320 so as to transmit the power to another place. The power transmitting portion 330 will be described in detail later.

The friction cleaning part 340 is an element coupled to the power transmission part 330 and rotated. The frictional cleaning part 340 can be exposed to the upper part of the cleaning housing 310 to be in direct contact with the ceiling and clean the ceiling by friction. The friction cleaning portion 340 may be made of a flexible elastic member to improve contact with the ceiling.

Accordingly, power is generated when the cleaning motor 320 mounted in the cleaning housing 310 receives an external control signal and is operated. The power is transmitted to the upper portion of the cleaning housing 310 through the power transmitting portion 330 And the frictional cleaning part 340 is in direct contact with the ceiling and removes dust and dust when it is attached to the ceiling by friction.

3, the power transmitting portion 330 includes a driving gear 331, a driven gear 332, a driven shaft 333, first and second bevel gears 334 and 335, Cleaning shafts 336 and 337 may be included.

The driving gear 331 is connected to the rotation shaft of the cleaning motor 320. When the cleaning motor 320 is operated by a control signal, the driving motor can be rotated at the same rotation center as the cleaning motor 320 .

Further, the driven gear 332 can be engaged with (engaged with) the drive gear 331 and can be powered by the drive gear 331. Here, the driving gear 331 and the driven gear 332 may be spur gears or helical gears for noise prevention.

Further, the driven shaft 333 can extend to both sides of the driven gear 332 and can distribute the power transmitted to the driven gear 332 on both sides. When the driven shaft 333 is provided so that the power is branched, the friction cleaning portion 340 may be provided in plural.

The first bevel gear 334 and the second bevel gear 335 are respectively coupled to both ends of the driven shaft 333 to switch the power transmission direction.

The first cleaning shaft 336 and the second cleaning shaft 337 are connected to the first bevel gear 334 and the second bevel gear 335 and rotate the plurality of friction cleaning portions 340, Can be cleaned. Here, the frictional force detecting part 340 may be provided in the form of a brush or a pad, and may be modified and modified in various forms according to the needs of the practitioner.

The cleaning unit 300 may further include a jetting unit 350 and a reservoir tank 360 for receiving the cleaning liquid to spray the cleaning liquid onto the ceiling when cleaning the ceiling through the friction cleaning unit 340.

Referring to FIG. 1, the jetting unit 350 is provided on one side of the cleaning housing 310, and may spray a cleaning liquid toward the ceiling. The reservoir tank 360 is also connected to the jetting unit 350 through a cleaning line and can store the cleaning liquid. The reservoir tank 360 may be housed in the cleaning housing 310, but may be provided separately on the outside of the cleaning housing 310. Here, the cleaning liquid may be water or a liquid detergent.

On the other hand, a configuration that can be added to the drones 10 according to the present embodiment will be described with reference to FIGS. 4 and 5. FIG.

Figures 4 and 5 are side views in different directions for Figure 1; Referring to FIG. 4, the drone main body 100 includes an attitude for assisting the frictional cleaning part 340 in contact with the ceiling in a correct posture when the friction cleaning part 340 contacts the object, such as a ceiling, And may further include a support portion 400.

The posture supporting part 400 helps to ensure that the entire upper surface of the friction decal part 340 stably contacts the ceiling. If the posture supporting part 400 is not provided, the frictional cleaning part 340 contacts the ceiling in an inclined state Which can lead to uneven wear of the friction cleaning portion 340, as well as deterioration of the cleaning efficiency.

Specifically, the posture supporter 400 may include a support post 410 and a first ball caster 420.

The support pillars 410 may extend from the drone main body 100 to a height corresponding to the height of the rubbing cleansing portion 340 and may be disposed on both sides of the rubbing cleansing portion 340 .

The first ball caster 420 is rotatably mounted on the end of the support column 410. When the frictional cleaning unit 340 contacts the ceiling and performs cleaning, .

Accordingly, when the dron moves to another place while cleaning the ceiling, the first ball caster 420 is freely rotated in contact with the ceiling while minimizing frictional force with the ceiling to help the dron easily move.

5, the drone main body 100 may further include a vibration damping unit 500 capable of absorbing vibration generated when the dron main body 100 is in contact with the ceiling. When the ceiling is cleaned, the friction cleaning part 340 and the posture supporting part 400 come into contact with the ceiling. When the generated vibration is transmitted to the drone main body 100, the amplitude of the drone main body 100 increases, However, since it is difficult to perform a smooth cleaning, the drone main body 100 may be provided with a separate vibration damping part 500.

Specifically, the vibration damping section 500 may include a vibration column 510, a vibration damping member 520, and a second ball caster 530.

Like the support pillars 410, the vibration pillars 510 may extend upward from the drones 100 toward the ceiling by a predetermined height. The vibration damping member 520 substantially reduces the vibration and includes an operation rod 521 slidably installed in the vibration column 510 and a movable member 523 installed between the operation rod 521 and the vibration column 510 And an elastic spring 522 for damping the transmitted vibration.

A sliding groove 511 may be formed in the vibrating column 510 so that the actuating rod 521 may be inserted and slide in the height direction. Accordingly, when vibration is applied, the operation rod 521 is slid in the height direction inside the sliding groove 511, and the elastic spring 522 is elastically deformed, so that the vibration can be attenuated.

The second ball caster 530 is rotatably installed at the end of the vibration damping member 520 and may be configured in the same manner as the first ball caster 420.

While the present invention has been described in connection with what is presently considered to be preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention is not limited thereto.

10: drones according to this embodiment
100: drone main body 110: first frame
120: second frame 130:
200: lift generating part 210: flying motor
220: propeller 300: cleaning unit
310: Cleaning housing 320: Cleaning motor
330: Power transmission unit 331: Drive gear
332: driven gear 333: driven shaft
334, 335: first and second bevel gears 336, 337: first and second cleaning shafts
340: Friction taxation unit 350:
360: reservoir tank 400:
410: Support column 420: First ball caster
500: Vibration damping section 510: Vibration column
520: Vibration damping member 530: Second ball caster

Claims (13)

Drone body;
A lift generating unit provided at a lower portion of the drone main body, the lift generating unit providing lifting force for floating in the air; And
And a cleaning unit disposed on the upper portion of the drone main body and provided to clean the object,
The cleaning unit includes:
A cleaning housing provided on an upper portion of the drone main body; And
And a friction cleaning portion exposed to an upper portion of the cleaning housing to clean the object by friction,
In the drones,
And a posture supporting part for supporting the friction cleaning part in contact with the object. The method according to claim 1,
In the drones,
A first frame provided in a beam shape; And
And a second frame disposed in a direction intersecting the first frame and provided in a beam shape. 3. The method of claim 2,
Wherein the drones are provided at positions where the first frame and the second frame cross each other and do not interfere with the lift generating part, and when the dron main body lands, Further comprising a leg portion for separating the cleaning drones. The method of claim 3,
Wherein the leg portion is provided in a curved shape so as to be elastically deformable so as to absorb an impact upon landing of the droned body. The method according to claim 1,
Wherein the lift-
A flight motor installed downwardly below the drone main body; And
And a propeller coupled to a rotational axis of the flight motor and disposed below the drones. The method according to claim 1,
The cleaning unit includes:
A cleaning motor built in the cleaning housing and generating power; And
And a power transmission unit connected to the cleaning motor to transmit power,
And the friction cleaning portion is connected to the power transmission portion and rotated. The method according to claim 6,
The power transmission unit includes:
A driving gear connected to a rotating shaft of the cleaning motor;
A driven gear that is gear-engaged with the drive gear;
A driven shaft extending to both sides of the driven gear and dividing the power transmitted to the driven gear;
First and second bevel gears coupled to both ends of the driven shaft to switch a power transmission direction; And
And first and second cleaning shafts connected to the first and second bevel gears, respectively, for rotating the plurality of friction cleaning units. 8. The method according to claim 6 or 7,
Wherein the friction cleaning portion is provided in the form of a brush or pad. The method according to claim 6,
The cleaning unit includes:
A spraying part provided at one side of the cleaning housing and spraying a cleaning liquid toward the object; And
And a reservoir tank connected to the jetting section to supply the cleaning liquid and store the cleaning liquid. delete The method according to claim 1,
The posture-
A supporting column extending upward from the drones toward the object; And
And a first ball castor rotatably mounted on an end of the support column. The method according to claim 6,
Wherein the drones further comprise a vibration damping portion capable of absorbing vibrations generated upon contact with the object. 13. The method of claim 12,
Wherein the vibration damping unit comprises:
A vibration column extending upward from the drones toward the object;
A vibration damping member installed on the vibration column to damp vibrations transmitted to the vibration column; And
And a second ball caster rotatably mounted on an end of the vibration damping member.

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