KR101959855B1 - Mounting device for photoflight - Google Patents

Abstract

The present invention relates to a mounting apparatus for aerial photographing. More specifically, the mounting apparatus for aerial photographing comprises: a supply unit coupled to the bottom surface of an aircraft in a front/rear direction; a height adjustment unit installed at one end of the supply unit to be vertically contracted/expanded; an extended unit horizontally extended at the bottom of the height adjustment unit; a shock absorption unit coupled to the lower part of both ends of the extended unit to reduce vibration transferred from the aircraft; a connection unit extended from both the ends of the extended unit to a front side; a pair of rotating units rotationally coupled to the connection unit and having a balance weight coupled to both ends with respect to a hinge shaft; an adjustment unit coupled to the lower part of the rotating unit to rotate with the rotating unit; a mounting unit coupled to the front side of the adjustment unit and mounting a camera thereon; and an ultrasonic oscillator coupled to the lower part of the mounting unit to oscillate an ultrasonic wave. Accordingly, sagging of the camera is able to be prevented and micro angle adjustment is able to be realized.

Description

{MOUNTING DEVICE FOR PHOTOFLIGHT}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a seat device for aerial photographing, and more particularly, to a seat device for aerial photographing capable of easily adjusting the height and angle of a camera for aerial photographing and preventing sag due to camera weight.

The aerial photographing technique is mainly composed of a pilot and a photographer sitting on the side of the aircraft cockpit and the camera, and a manless photographing and a model helicopter or an airplane, which is equipped with a wireless transmission / Photography technology.

The photographed aerial photographs are used for digital map production by inputting various additional information on the basis of the numerical information obtained by applying numerical values such as the geostationary coordinate information of the feature type. Recent developments in computers and software, the development of photographic and aeronautical technologies, and the development of precision optics and instrumentation have all contributed to realistic mapping.

The manned aerial photographing system uses an airplane equipped with a photographing device to photograph an airplane along the path of the photographing area to the photographing plan area. When the photographing company moves the photographing device to acquire the data using the photographing device, And a navigation device.

Unmanned aerial photographing system is a method to solve the complication of high cost, excessive time consuming and data acquisition procedure of aerial surveying method and remote surveying method, and it is a method of solving airship bag, propulsion, controller and engine which can fill light gas such as hydrogen and helium It is composed of a gondola, a shooting system that can acquire images, a ground control system, and a controller.

The manned aerial photographing system allows the photographer to directly shoot the object by checking the screen. Therefore, even if the focus or angle of the camera does not match due to the high vibration of the aircraft itself, the wind or the weight of the camera itself, There is a problem that shooting at a relatively high altitude is difficult because shooting at low altitude is dangerous, and it is difficult to obtain sharp and high-quality photographs or images, and there is a problem that it is relatively expensive.

Since the unmanned aerial photographing system can shoot at a low altitude, it is possible to shoot at a relatively short distance, and a sharp and high-quality photograph or image can be obtained.

However, in the unmanned aerial photographing system, there is a problem that the camera angle is set due to the weight of the aerial photographing camera itself, and when the camera is adjusted to the photographing angle, the torque applied to the driving motor becomes larger as the camera approaches to the horizontal. And there is a problem that the driving motor is difficult to operate.

In addition, the conventional unmanned aerial photographing system has a problem that vibrations generated in a model helicopter or an airship are transmitted to the camera as it is, and thus the image is shaken or distorted even when the resolution and sharpness are high.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention, and is not to be construed as an admission that the prior art is known to those skilled in the art.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to provide a seat device for aerial photographing which can prevent the camera from hitting and adjust the angle by adjusting the center of gravity using a balance weight have.

It is another object of the present invention to provide a seat device for aerial photographing, which can attenuate vibration applied from an airship using a cushioning part and can eliminate an element that interferes with photographing by using an ultrasonic oscillator.

The technical objects to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical subjects which are not mentioned can be clearly understood by those skilled in the art from the description of the present invention .

In order to achieve the above object, according to the present invention, there is provided an airbag apparatus comprising: a support portion coupled to a bottom surface of an aircraft in a front-rear direction; A height adjusting unit installed at one end of the support unit so as to be vertically extendable and contractible; An extension part extending laterally from the lower end of the height adjusting part and having a control part; A buffer coupled to both ends of the extension to damp vibrations transmitted from the aircraft; A connecting portion extending forward from both ends of the extended portion; A pair of pivots coupled to the connecting portion so as to be rotatable and further balanced and coupled at both ends with respect to the hinge axis; A control unit coupled to a lower portion of the rotary unit and rotatable with the rotary unit; A seating part coupled to the front of the control part and on which the camera is seated; And an ultrasonic oscillator coupled to a lower portion of the seat portion to generate ultrasonic waves; And a control unit.

Further, in the seating apparatus for aerial photographing according to the embodiment of the present invention, the height adjusting unit may include: a protrusion coupled to a lower portion of the supporting unit; A case having a case hole formed therein for receiving the protrusion, a height case coupled to one side of the extended portion and slidable up and down, and having a hollow cylindrical interior to which oil is injected; An extension portion formed at a lower end of the protrusion and having an outer circumferential surface having the same size as the inner circumferential surface of the height case and contacting the inner circumferential surface of the height case; A pair of through holes formed vertically in the extension portion and through which oil flows; An annular top closing ring inserted into the protrusion so as to be slidable up and down and capable of selectively closing the upper end of the through hole; A lower closure plate movably coupled to a lower portion of the extension by a height spring to selectively close the lower end of the through hole; And a hydraulic pump connected to the height case and applying pressure to the oil inside the height case; Wherein the upper closed ring is made of a magnetic material so that the upper closed ring can be spaced from the upper end of the extended portion by the permanent magnet, and the upper closed ring is separated from the upper end of the extended portion by the permanent magnet And the lower end closing plate is spaced apart from the lower portion of the expansion portion by the elastic force of the height spring. When the hydraulic pressure is applied to the lower portion of the height case by the hydraulic pump, the lower end closing plate is brought into close contact with the lower end of the expansion portion, When the oil pressure is applied to the upper portion of the height case by the hydraulic pump, the upper closing ring is brought into close contact with the upper end of the expansion portion to close the upper end of the through hole, And is raised by the hydraulic pump to the upper and lower portions of the height case When the same hydraulic pressure is applied, it is preferable that the height case maintains a height.

In addition, in the seating apparatus for aerial photographing according to the embodiment of the present invention, the buffering portion includes a cylindrical buffering case in which oil is contained therein; A buffer plate accommodated in the buffer case so as to be movable up and down; A buffer rod extending vertically from an upper portion of the buffer plate and coupled to a lower portion of the extension; And a buffer spring coupled between a lower portion of the buffer plate and an inner side of the buffer case to provide an elastic restoring force; Wherein a plurality of buffer holes are vertically formed through the buffer plate so that oil can flow through the buffer plate and an elastic force is applied to the upper surface of the buffer plate adjacent to the buffer hole to open and close a portion of an upper end of the buffer hole, And a pair of lower blades having an elastic force so as to be able to open and close part of the lower end of the buffer hole according to the pressure of the oil are coupled to the lower surface of the buffer plate adjacent to the buffer hole, It is preferable that one end of the lower blade is fixedly coupled to the upper surface of the buffer plate and the other end of the lower blade is curved in an upward direction so that the lower blade can be freely moved while the other end is fixed to the lower surface of the buffer plate, Do.

In addition, in the seating apparatus for aerial photographing according to the embodiment of the present invention, the connecting portion may include a first connecting portion having a vertically rotating motor coupled to a front end thereof so as to rotate one of the pair of pivoting portions; And a second connection portion which is coupled to the other one of the pair of the rotation portions through a bearing; .

In addition, in the seating apparatus for aerial photographing according to the embodiment of the present invention, the pivoting portion includes a hinge shaft rotatably connected to the first connecting portion or the second connecting portion. A forward pivotal portion fixedly coupled forwardly of the hinge axis and coupled to a plurality of balanced multi-stages; And a rear pivotal portion coupled to the rear portion of the hinge shaft so as to be vertically rotatable and coupled to a plurality of balance additional multi-stages; Wherein the balance weight includes an entrance portion having a detachment preventing portion that can be housed inside or protrude outward; And an insertion portion formed at a lower portion of the entry portion and having a relatively larger diameter than the entry portion; Wherein the release preventing portion includes a stop member housed in the release preventing hole or exposed to the outside and an elastic device provided inside the release preventing hole to provide an elastic force to the stop member, An insertion groove having a diameter larger than the diameter of the entrance portion and providing a predetermined space on the inside of the insertion portion, a detent groove formed to be recessed inside the insertion portion, and a separation hole formed vertically through the insertion portion .

Further, in the seat mounting apparatus for aerial photographing according to the embodiment of the present invention, the adjusting unit may include a vertical adjusting unit coupled to a lower portion of the turning unit and rotatable with the turning unit; And a horizontal adjuster coupled to a lower end of the vertical adjuster and swinging up and down; And a left and right rotation motor is disposed between the horizontal adjuster and the seat so as to rotate the seat in the right and left directions.

Further, in the seating apparatus for aerial photographing according to the embodiment of the present invention, the ultrasonic oscillator may include a first output unit for generating a frequency of 20 to 24 Khz; A second output for generating a frequency of 25 to 29 Khz; A third output for generating a frequency of 30 to 34 Khz; A pattern generator for generating an irregular arbitrary pattern and transmitting the signal to a control unit; And a power supply unit that arbitrarily turns on or off power supplied to any one of the first to third output units in response to a signal transmitted from the controller. .

The present invention having the above-described configuration can easily adjust the height, the vertical angle, and the left and right angles of the camera for aerial photographing by using the height adjusting unit, the vertical rotation motor and the left and right rotation motor.

In addition, the present invention has the effect of preventing the phenomenon that the photographed image is shaken or distorted by coupling the cushioning portions to both ends of the extension portion so that the vibration transmitted from the model helicopter or the airship can be attenuated.

In addition, according to the present invention, since the center of gravity can be adjusted by combining the balance weight on the front and rear sides with respect to the hinge axis, it is possible to prevent the camera from being struck by the weight and to minimize the torque applied to the rotation motor, Is possible.

Further, the present invention can fundamentally block access to elements that interfere with photography using an ultrasonic oscillator, and the ultrasonic oscillator operates in an irregular pattern, so that the learning effect of algae and the like can be significantly lowered, have.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a general view of a seating apparatus for aerial photographing according to an embodiment of the present invention.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a longitudinal sectional view of a height adjusting portion according to an embodiment of the present invention.
4 illustrates an internal view of a buffer according to an embodiment of the present invention.
FIG. 5 is an overall sectional view and an internal view of a turning unit according to an embodiment of the present invention; FIG.
6 illustrates a cross-sectional view of a plurality of counterbalances according to one embodiment of the present invention.
FIG. 7 is a diagram illustrating the configuration of an ultrasonic oscillator according to an embodiment of the present invention; FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in order that the present invention can be easily carried out by those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In addition, terms and words used in the present description and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concept of the term appropriately to describe its own invention in the best way. It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an overall configuration of a seating apparatus for aerial photographing according to an embodiment of the present invention; FIG.

As shown in the figure, the seating apparatus for aerial photographing according to the present invention includes a supporting unit 100, a height adjusting unit 200, an extending unit 300, a buffer unit 400, a turning unit 600, 700, a seating part 800, and an ultrasonic oscillator 900.

The support 100 is fixedly coupled to the bottom of an aircraft (concept including a model helicopter or an airship). The support unit 100 is disposed along the front-rear direction of the aircraft. In the illustrated embodiment, the support unit 100 is formed as a straight frame, but may include a plurality of frames.

A height adjusting unit 200 is coupled to one end of the support unit 100 in a vertical direction. The height adjuster 200 is vertically extendable and contractible. Since the upper end of the height adjusting part 200 is fixedly coupled to the bottom of the aircraft by the supporting part 100, when the height adjusting part 200 is vertically expanded and contracted, the extending part 300, the connecting part 500, ) Are moved up and down to control the height of the camera (not shown). In addition, since the height adjuster 200 has a structure in which oil can flow therein, a certain degree of buffering effect can be obtained at the same time.

That is, when the height adjuster 200 is extended, the distance between the seat 800 and the bottom of the aircraft is increased so that the height of the camera is relatively low relative to the ground. When the height adjuster 200 is reduced, And the height of the camera increases.

The extension portion 300 is coupled to the lower end of the height adjusting portion 200 and extends laterally. The control portion 310 is mounted at a central portion of the extending portion 300. The control unit 310 is electrically connected to the vertical rotation motor 511 and the left and right rotation motor 730 to drive the components. Such an electrical connection structure is a conventional technology and is not a core constitution of the present invention, so a detailed description thereof will be omitted.

Two portions of the buffer portion 400 are coupled to both ends of the extension portion 300. The buffering part 400 shakes up and down in response to the vibration transmitted from the aircraft, thereby damping the vibration.

The connection portion 500 extends forward from both ends of the extension portion 300. A pair of swinging parts (600) are rotatably coupled to the tip of the connecting part (500). The angle of the camera can be adjusted in accordance with the rotation of the rotary unit 600.

The connection part 500 includes a first connection part 510 and a pair of rotation parts 600, to which a vertical rotation motor 511 is coupled at a front end so as to rotate one of the pair of rotation parts 600, And a second connecting portion 520 which is coupled to the other one of the rotating portions through a bearing 521. [

In the illustrated embodiment, the first connection part 510 is disposed on the left side and the second connection part 520 is disposed on the right side. The rotation unit 600 disposed on the left side is rotated up and down according to the driving of the up and down rotation motor 511 of the first connection unit 510. The control unit 700 described later is disposed between the pair of the rotation units 600 The turning unit 600 arranged on the right side is also rotated vertically together.

A hinge shaft 610 is formed in the rotary part 600 and a balance weight 650 is coupled to the front and rear sides of the hinge shaft 610. The balance weight 650 balances the forward and backward balances by aligning the center of gravity of both ends about the hinge axis 610.

The adjusting unit 700 is coupled to the lower portion of the rotary unit 600. The control unit 700 rotates together with the rotation of the rotation unit 600. The control unit 700 includes a vertical control unit 710 coupled to a lower portion of the rotary unit 600 and a horizontal control unit 720 coupled to a lower end of the vertical control unit and swinging up and down.

The vertical regulating portion 710 extends to the lower portion of the rotary portion 600 and is branched in the front and rear direction at the branched portion 711. The horizontal adjuster 720 is formed in a 'C' shape and arranged in the left-right direction.

A seating part 800 on which a camera is mounted is coupled to the front of the horizontal adjusting part 720 of the adjusting part 700. A horizontal rotation motor 730 is installed between the horizontal adjustment unit 720 and the seating unit 800. The left-right rotation motor 730 is disposed in a direction orthogonal to the rotation direction of the up-and-down rotation motor 511 so as to rotate the seating portion 800 left and right.

In other words, the camera can be rotated up and down according to the operation of the up-and-down rotation motor 511 to adjust the shooting angle, and the camera can be rotated right and left according to the operation of the left and right rotation motor 730 to change the shot image.

An ultrasonic oscillator 900 is coupled to the lower part of the seating part 800 to oscillate ultrasonic waves. The ultrasonic oscillator 900 can eliminate a bird or the like approaching to the camera, so that it is possible to shoot with high quality.

Meanwhile, it is preferable that a coating layer is applied to the lens of the camera. It is preferable that the coating layer is applied to a thickness of 10 to 30 nm because if the coating layer is applied to a thickness of less than 10 nm, it is difficult to perform the protective function of the lens portion, and if the coating layer is applied to a thickness of more than 30 nm, to be.

The coating layer is preferably made of a material having a surface tension of 20 dyne / cm or less and a dynamic friction coefficient of 0.05 or less. By forming the coating layer with a material having a low surface tension and a high slip, contamination of the surface of the camera lens due to foreign substances can be prevented, and the problem of low transmittance can be solved.

Specifically, the coating layer comprises 10 to 20 parts by weight of fluoroalkylsilane, 5 to 10 parts by weight of fluoroacrylamide, and 5 to 10 parts by weight of perfluoro phosphoric acid salt per 100 parts by weight of perfluoropolyether.

division Comparative Example 1 Comparative Example 2 Example Glass 91 81 91 Optical film 91 81 91

Table 1 shows the case where the protective lens is applied to the lens (Comparative Example 2) and the case where the coating layer is applied to the lens of the camera according to the present invention (Embodiment 1) And the aerial photographic transmittance according to each material is compared.

As shown in Table 1, when the camera lens was coated with the coating layer according to the present invention, foreign matter was removed from the lens structure (Comparative Example 2) in which the conventional protective glass was covered, and 10% The increase in the aerial photograph transmittance can be confirmed. The reference lens without the surface treatment of the camera lens (Comparative Example 1) is vulnerable to an external impact and can not be used as it is highly likely to be contaminated during use.

FIG. 2 is a perspective view of a height regulating unit according to an embodiment of the present invention. FIG. 3 is a longitudinal sectional view of a height regulating unit according to an embodiment of the present invention.

As shown in the figure, the height adjuster 200 includes a protrusion 220 coupled to a lower portion of the support 100 and a height case 210 in which a portion of the protrusion is received. As the height case 210 moves up and down, the extension 300 coupled to the lower end thereof moves up and down.

The height case 210 is formed into a hollow cylindrical shape, and oil is injected into the height case 210. The protrusion 220 may be inserted into the case hole 211 formed at the upper end of the height case 210 or may protrude from the case hole 211.

The upper end of the protrusion 220 is fixedly coupled to the supporter 100 and the lower end of the protrusion 220 is formed with an extension having a diameter relatively larger than the diameter of the protrusion 220. [ A portion 230 is formed. The extension 230 may be integrally formed with the protrusion 220 or may be coupled to the lower end of the protrusion 220 by a screw or the like.

The diameter of the outer circumference of the extension 230 is equal to the diameter of the inner circumference of the height case 210. Although not shown, a sleeve or the like may be coupled to the outer circumferential surface of the extension 230 to improve airtightness with the height case 210.

A pair of through-holes 231 may be formed in the extension part 230 so as to extend in the vertical direction. The oil in the height case 210 can freely flow through the through hole 231.

An annular upper closing ring 240 is inserted into the protrusion 220 so as to be slidable up and down. The diameter of the upper closed ring 240 is formed to be large enough to cover the through hole 231 and the oil can no longer flow as the upper closed ring 240 closes the upper portion of the through hole 231 .

The upper closing ring 240 is made of a magnetic material (e.g., iron) that can be magnetized in a magnetic field, and the permanent magnet 221 is inserted into the inside of the protrusion 220. The permanent magnets 221 are spaced apart from each other by a predetermined distance from the upper end of the extending portion 230.

That is, since the permanent magnet 221 is spaced apart from the upper portion of the expansion portion 230, the upper closed ring 240 does not normally close the through-hole 231 but is spaced apart from the upper end of the expansion portion 230 State can be maintained.

The lower end closing plate 250 is coupled to the lower portion of the extension portion 230 so as to move up and down. The lower end closing plate 250 is formed in a disk shape and the diameter of the lower end closing plate 250 is formed to be large enough to cover the lower end of the through hole 231. As the lower closure plate 250 closes the lower portion of the through hole 231, the oil can no longer flow.

Since the lower end closing plate 250 is coupled to the extending portion 230 through the height spring 251, the lower closing plate 250 is separated from the lower end of the extending portion 230 by the elastic force of the height spring 251, Lt; / RTI >

In other words, since the upper end closing ring 240 and the lower end closing plate 250 are spaced from the upper end or the lower end of the extending portion 230 without normally closing the upper or lower end of the through hole 231, (231). ≪ / RTI >

An upper injection port 212 and a lower injection port 213 are formed on the side of the height case 210 so that hydraulic pressure can be applied to the inside of the height case 210 from the hydraulic pump 260. The hydraulic pump 260 is driven by a control unit 310. When the hydraulic pressure is applied to the lower portion of the height case 210 through the lower injection port 213, the hydraulic pressure applied below the lower end closing plate 250 becomes higher than the elastic force of the height spring 251, (250) rises to close the lower end of the through hole (231).

Since the lower end of the through hole 231 is closed by the lower end closing plate 250, the oil can no longer flow through the through hole 231, The protrusion 220 is raised, but the upper end of the protrusion 220 is fixed to the support portion 100, so that the height case 210 is relatively lowered.

On the contrary, when hydraulic pressure is applied to the upper portion of the height case 210 through the upper injection port 212, the hydraulic pressure applied to the upper closing ring 240 becomes stronger than the magnetic force of the permanent magnet 221, The closing ring 240 is brought into close contact with the upper end of the extending portion 230 to close the upper end of the through hole 231.

The upper end of the through hole 231 is closed by the upper closing ring 240 so that the oil can no longer flow through the through hole 231 and the oil pressure on the upper portion of the expanding portion 230 is lowered The protrusion 220 is lowered, but the upper end of the protrusion 220 is fixed to the support portion 100, so that the height case 210 is relatively raised.

As the height case 210 is relatively lowered or raised, the extension part 300 coupled to the lower end thereof is also lowered or raised, and the height of the camera coupled to the seating part 800 can also be raised or lowered together.

When the height of the camera reaches the height desired by the user, the same hydraulic pressure is applied to the hydraulic pump 260 through the upper injection port 212 and the lower injection port 213, So that the height case 210 maintains its height.

As described above, since the height of the camera can be adjusted by moving the height adjusting unit 200 up and down, the height of the camera can be freely adjusted even if the camera is stably fixed to the seat 800.

4 is a view illustrating an internal view of a buffer according to an embodiment of the present invention.

As shown in the figure, the buffer unit 400 includes a cylindrical buffer case 410 containing oil therein and a buffer plate 420 accommodated in the buffer case so as to be movable up and down.

As the buffer plate 420 moves up and down, the vibration transmitted from the aircraft is damped by the damping force of the oil. A cushioning rod 430 coupled to the lower end of the extension 300 is vertically extended to the upper portion of the buffer plate 420 and a buffer spring 440 is interposed between the lower portion of the buffer plate 420 and the inner side of the buffer case 410. To provide an elastic restoring force.

A plurality of buffer holes 421 are vertically formed through the buffer plate 420 so that oil can flow. A sleeve or the like may be additionally provided on the outer circumferential surface of the buffer plate 420 to further enhance airtightness with the buffer case 410.

Since the oil can flow through the buffer hole 421, the buffer case 410 normally attempts to descend downward due to its own weight. However, since the buffer spring 440 prevents the buffer spring 440 from being elastically restored, Can maintain an appropriate height.

A pair of upper blades 422 having an elastic force are coupled to the upper surface of the buffer plate 420 adjacent to the buffer hole 421 so as to open or close a portion of the upper end of the buffer hole 421 according to the pressure of the oil . The upper blade 422 may be formed of rubber or the like.

One end of the upper blade 422 is fixedly coupled to the upper surface of the buffer plate 420, and the other end is bent in the upward direction and can freely move. That is, the upper blade 422 is normally bent upward as an arrow to open the buffer hole 421.

If the pressure of the oil acts strongly in the downward direction, the upper blade 422 partially covers the upper end of the buffer hole 421 to reduce the flow amount of the oil, And the damping force is further increased in this process. At this time, the upper blade 422 does not completely cover the upper end of the buffer hole 421.

The upper blade 422 can increase the amount of flow of the oil without substantially covering the upper end of the buffer hole 421 when the buffer plate 420 smoothly moves upward and the oil pressure weakens downward. At this time, the damping force is relatively reduced as described above.

In other words, according to the present invention, since the damping force of the buffer unit 400 can be varied corresponding to the amount of vibration transmitted from the aircraft, it is possible to flexibly respond to various situations and maximize the vibration damping effect .

A pair of lower blades 423 having an elastic force is coupled to the lower surface of the buffer plate 420 adjacent to the buffer hole 421 so as to open or close a portion of the lower end of the buffer hole 421 according to the pressure of the oil . The lower blade 423 may be formed of rubber or the like as the upper blade 422.

One end of the lower blade 423 is fixed to the lower surface of the buffer plate 420 so as to be symmetrical with the upper blade 422 and the other end is curved downward to be arc-shaped. Normally, the lower blade 423 does not close the lower end of the buffer hole 421.

The lower blade 423 covers a portion of the lower end of the buffer hole 421 to increase the damping force and the buffer plate 420 is moved upward Smoothly moving to the bottom, the flow amount of the oil is increased without substantially covering the lower end of the buffer hole 421.

5 is a view showing an overall sectional view and an internal view of the turning unit according to an embodiment of the present invention.

The rotary unit 600 includes a hinge shaft 610 rotatably connected to the first connection unit 510 or the second connection unit 520, a front hinge shaft 610 fixedly coupled to the front of the hinge shaft 610, And a rear pivotal part 630 coupled to the rear of the hinge axis 610 so as to be rotatable up and down and to which the balance weight 650 is coupled at an end thereof.

The hinge shaft 610 is formed in a cylindrical shape having a space therein, and the outer side thereof is connected to the up-and-down rotating motor 511 or connected to the bearing 521 to be rotatable. The front swing unit 620 is formed in a straight shape and is coupled to the front of the hinge shaft 610.

The rear pivotal part 630 may be connected to a rotating plate 640 rotatably coupled to the inside of the hinge shaft 610 and may be rotated up and down. That is, the rear pivot portion 630 can adjust the angle relative to the front pivot portion.

A plurality of protrusions 641 are formed on the outer circumferential surface of the rotary plate 640 and a stopper 642 is disposed on the upper portion of the rotary plate 640 so as to enter between the plurality of protrusions 641. The stopper 642 can prevent the rotation plate 640 from being rotated.

The stop 642 includes a stop case 643 for providing a space for allowing the stop pin 644 to move up and down and a stopper 643 mounted between the upper end of the stop pin 644 and the upper end of the stop case 643, A stopper spring 645 elastically supporting the stopper pin 644 downward and a stopper operating portion 646 extending from the top of the stopper pin 644 and capable of forcibly moving the stopper pin 644 upward by an external force .

When the rear pivotal part 630 is fixed, the stop pin 644 is elastically supported by the stopping spring 645 so that a plurality of The rotation plate 640 is caught by the stop pin 644 and stops rotating.

When the user wishes to rotate the rear pivoting portion 630 up and down, the user pulls the stopping portion 646 up so that the stopping pin 644 can overcome the elastic force of the stopping spring 645 and move up And the stop pin 644 is spaced apart from the plurality of protrusions 641 so that the rotating plate 640 is freely rotated. At this time, an elongated hole 611 is formed in the hinge shaft 610 so that the rear pivotal part 630 can move.

Therefore, the user can rotate the rear pivoting portion 630 up and down to be placed at a desired position. After the rear pivoting portion 630 moves to a desired position, the user releases the external force of the stopping portion 646, Thereby preventing the rotation shaft 630 from rotating.

The balance weight 650, which is coupled to the forward and backward pivot portions 620 and 630, respectively, balance the forward and backward portions with respect to the hinge axis 610. It is difficult to arrange the center of gravity of the camera coupled to the seat part 800 on the vertical line precisely with the hinge shaft 610. In addition, when the axis of the vertical rotation motor 511 is rotated for adjusting the angle, the hinge shaft 610 Since the center of gravity axis is changed with respect to the weight of the seat 800, the weight of the seat 800 is stuck due to the weight of the camera.

At this time, the center of gravity of both sides of the hinge shaft 610 is balanced by the balance weight 650 coupled to the swing unit 600, so that the swing unit 600 and the mount unit 800 are balanced in the front-back direction.

Further, when the angle of the camera is adjusted, if the axis of the up / down motor 511 is rotated for adjusting the angle, the center of gravity axis of the camera with respect to the hinge shaft 610 is changed, so that the torque applied to the hinge shaft 610 is continuously . At this time, the center of gravity of the hinge shaft 610 is aligned with the center of gravity by the balance weight 650, so that the torque applied to the shaft of the up-and-down rotating motor 511 can be made constant. And the life span can be increased.

The front pivot portion 620 extends horizontally, and the rear pivot portion 630 is disposed at a predetermined angle downward. This allows the center of gravity of the rear pivotal portion 630 to be relatively lower than the center of gravity of the front pivotal portion 620 so that the seating portion 800 including the hinge axis 610 can be slightly heard by itself, In order to prevent it from being more effectively prevented.

The upper end 611a of the long hole 611 formed in the hinge shaft 610 may be formed at a lower position relative to the position of the forward pivot portion 620. [ The elongated hole 611 serves as a stopper for restricting the movement of the rear pivotal part 630 while providing a path for the rear pivotal part 630 to move.

6 is a cross-sectional view of a plurality of counterbalances according to an embodiment of the present invention.

As shown in the figure, the balance weight 650 is formed in a generally cylindrical shape and includes an entrance portion 651 having a relatively small diameter formed on the upper portion and an insertion portion 656 having a relatively large diameter formed on a lower portion of the entrance portion do.

Although only two balance weights 650 are shown in the illustrated embodiment, this is for convenience of description, and it will be appreciated by those of ordinary skill in the art that the balance may be composed of several more.

An entry portion 651 formed in one of the plurality of balance weight 650 is inserted and connected to an insertion portion 656 formed in another balance weight disposed adjacent to the balance weight 650. Through this process, Lt; / RTI >

The entry portion 651 is provided with a release preventing portion 652 so as to be housed in the release preventing hole 653 or to protrude to the outside. The separation preventing portion 652 includes a stop member 654 and an elastic device 655 so that the balance weight 650 connected in multiple stages is not separated.

The elastic device 655 is installed inside the escape prevention hole 653 to provide an elastic force to the stop member 654 and is implemented in the form of a coil spring in the illustrated embodiment but is not limited thereto.

The stop 654 is provided with an entrance 651 formed in a counterbalance of one of the plurality of counterbalances 650 so as to enter the insert 656 formed in another counterweight disposed adjacent to the counterbalance 654, Preventing hole 653 and a lower end of a detent groove 658 which will be described later when the entrance of the entry portion 651 is completed to prevent the balance weight 650 from being separated. Shaped contact end portion is formed.

In other words, when the user inserts the entry portion 651 formed in the counterbalance of one of the plurality of counterbalances 650 into the insertion portion 656 formed in the other counterbalance disposed adjacent thereto, the tapered end of the stop member 654 The stopper 654 is brought into contact with the insertion portion 656 and the stopper member 654 is pushed into the escape prevention hole 653 and the stopper member 654 is moved to the stopper groove 658 by the elastic device 655, Preventing hole 653 is exposed to the outside and the close end of the stopping member 654 is brought into close contact with the lower end of the stopping groove 658 to prevent the balance weight 650 from being separated.

The insertion portion 656 has an insertion groove 657 which provides a predetermined space inside and has a diameter larger than the diameter of the entry portion 651, a stop groove 658 which is recessed inside the insertion portion, And a separation hole 659 which is formed in the upper portion in the vertical direction.

The insertion groove 657 is a portion where an entry portion 651 formed in a counterweight of one of the plurality of counterbalances 650 is inserted into another counterbalance disposed adjacent thereto. The detent groove 658 is a portion into which the stopper 654 of the departure prevention portion 652 protrudes outside.

The separating hole 659 is configured to push the stop member 654 back into the escape preventing hole 653 by inserting a separate separating tool or the like when separating the balance weight 650 in a multistage state .

For example, when the plurality of balance weight 650 are coupled in multiple stages, the stop member 654 is protruded outward from the release preventing hole 653 by the elastic force of the elastic device 655 and inserted into the stop groove 658 Lt; / RTI > In this state, the user separates the balance weight 650 in a state in which the separating member 654 is retracted into the escape prevention hole 653 by inserting a separate separating tool in the vertical direction so as to pass through the separation hole 659 can do.

As described above, according to the present invention, it is possible to configure a plurality of balance weights 650 to be mutually coupled or detachable, and to set the number of the balance weights 650 in accordance with the weight of the camera, the control unit 700 and the seating unit 800 The balance of the weight on both sides around the hinge axis 610 can be adjusted as close as possible.

FIG. 7 is a diagram illustrating the configuration of an ultrasonic oscillator according to an embodiment of the present invention. Referring to FIG.

The ultrasonic oscillator 900 includes a first output unit 910, a second output unit 920 and a third output unit 930 for generating different frequencies, a pattern generator 940, (950).

The first to third output units 910, 920 and 930 generate frequencies that are relatively higher than human audible frequencies (20 Hz to 20 KHz). The first output unit 910 has a frequency of 20 to 24 KHz The second output portion 920 generates a frequency of 25 to 29 KHz, and the third output portion 930 generates a frequency of 30 to 34 KHz.

That is, the first output unit 910, the second output unit 920, and the third output unit 930 generate frequencies different from each other, and the frequencies generated at this time are not harmful to humans, Frequency.

The pattern generator 940 generates an irregular random number pattern and transmits the random number signal to the controller 310 electrically connected to the pattern generator 940. The control unit 310 transmits an arbitrary signal to the power supply unit 950 based on the signal transmitted from the pattern generator 940.

In response to the signal transmitted from the control unit 310, the power supply unit 950 supplies power to any one of the first output unit 910, the second output unit 920, and the third output unit 930, (ON) or off (OFF) according to the control signal.

That is, since the control unit 310 uses the random number signal generated by the pattern generator 940 to operate the power supply unit 950, the output unit to which the frequency is to be output includes a first output unit 910, a second output unit 920 And the third output unit 930 are randomly selected, and there is no regularity with respect to time and space.

Since the ultrasonic oscillator 900 operates in an irregular pattern that is unpredictable as described above, the present invention has an advantage that the learning effect of the algae is significantly lowered and the algae elimination effect can be maintained for a long time.

As described above, the present invention can easily adjust the height, the vertical angle, and the left and right angles of the camera for aerial photographing using the height adjuster 200, the up / down motor 511, and the left / right motor 730 have.

In addition, the present invention has the effect of preventing the phenomenon that the photographed image is shaken or distorted by coupling the buffer part 400 to both ends of the extended part 300 so that the vibration transmitted from the model helicopter or the airship can be attenuated .

In addition, according to the present invention, since the center of gravity can be adjusted by combining the balance weight 650 on the front and rear sides with respect to the hinge shaft 610, it is possible to prevent the camera from being struck by the weight, It is possible to adjust the angle finely.

Further, the present invention can fundamentally block access to the elements that interfere with the photographing using the ultrasonic oscillator 900. Since the ultrasonic oscillator operates in an irregular pattern, the learning effect of the algae can be significantly lowered, .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Will be clear to those who have knowledge of.

100: Support part 200: Height adjuster 210: Height case
211: case hole 212: upper injection hole 213: lower injection hole
220: protruding portion 221: permanent magnet 230:
231: Through hole 240: Upper closing ring 250: Lower closing plate
251: height spring 260: hydraulic pump 300: extension part
310: control unit 400: buffering unit 410: buffering case
420: buffer plate 421: buffer hole 422: upper blade
423: lower blade 430: buffer rod 440: buffer spring
500: connection part 510: first connection part 511: up-down rotation motor
520: second connecting portion 521: bearing 600:
610: Hinge shaft 611: Long hole 611a: Top end of the long hole
620: forward rotation unit 630: rear rotation unit 640:
641: protrusion 642: stop portion 643: stop case
644: stop pin 645: stop spring 646: stop operation part
650: Balance 651: Entry portion 652: Departure prevention portion
653: separation preventing hole 654: stop member 655: elastic device
656: insertion portion 657: insertion groove 658: stop groove
659: separation hole 700: regulating portion 710: vertical regulating portion
711: branch portion 720: horizontal adjustment portion 730: left and right rotation motor
800: seat part 900: ultrasonic oscillator 910: first output part
920: second output section 930: third output section 940: pattern generator
950: Power supply

Claims (2)

A support portion coupled to the bottom surface of the aircraft in the forward and backward directions; A height adjusting unit installed at one end of the support unit so as to be vertically extendable and contractible; An extension part extending laterally from the lower end of the height adjusting part and having a control part; A buffer coupled to both ends of the extension to damp vibrations transmitted from the aircraft; A connecting portion extending forward from both ends of the extended portion; A pair of pivots coupled to the connecting portion so as to be rotatable and further balanced and coupled at both ends with respect to the hinge axis; A control unit coupled to a lower portion of the rotary unit and rotatable with the rotary unit; A seating part coupled to the front of the control part and on which the camera is seated; And an ultrasonic oscillator coupled to a lower portion of the seat portion to generate ultrasonic waves; , ≪ / RTI &
The height adjuster includes:
A protrusion coupled to a lower portion of the support; A case having a case hole formed therein for receiving the protrusion, a height case coupled to one side of the extended portion and slidable up and down, and having a hollow cylindrical interior to which oil is injected; An extension portion formed at a lower end of the protrusion and having an outer circumferential surface having the same size as the inner circumferential surface of the height case and contacting the inner circumferential surface of the height case; A pair of through holes formed vertically in the extension portion and through which oil flows; An annular top closing ring inserted into the protrusion so as to be slidable up and down and capable of selectively closing the upper end of the through hole; A lower closure plate movably coupled to a lower portion of the extension by a height spring to selectively close the lower end of the through hole; And a hydraulic pump connected to the height case and applying pressure to the oil inside the height case; Wherein the upper closed ring is made of a magnetic material so that the upper closed ring can be spaced from the upper end of the extended portion by the permanent magnet, and the upper closed ring is separated from the upper end of the extended portion by the permanent magnet And the lower end closing plate is spaced apart from the lower portion of the expansion portion by the elastic force of the height spring. When the hydraulic pressure is applied to the lower portion of the height case by the hydraulic pump, the lower end closing plate is brought into close contact with the lower end of the expansion portion, When the oil pressure is applied to the upper portion of the height case by the hydraulic pump, the upper closing ring is brought into close contact with the upper end of the expansion portion to close the upper end of the through hole, And is raised by the hydraulic pump to the upper and lower portions of the height case When the same hydraulic pressure is applied, the height case keeps its height,
The buffering portion
A cylindrical shock absorber housing oil inside; A buffer plate accommodated in the buffer case so as to be movable up and down; A buffer rod extending vertically from an upper portion of the buffer plate and coupled to a lower portion of the extension; And a buffer spring coupled between a lower portion of the buffer plate and an inner side of the buffer case to provide an elastic restoring force; Wherein a plurality of buffer holes are vertically formed through the buffer plate so that oil can flow through the buffer plate and an elastic force is applied to the upper surface of the buffer plate adjacent to the buffer hole to open and close a portion of an upper end of the buffer hole, And a pair of lower blades having an elastic force so as to be able to open and close part of the lower end of the buffer hole according to the pressure of the oil are coupled to the lower surface of the buffer plate adjacent to the buffer hole, And the lower end of the lower wing is fixed to the lower surface of the buffer plate and the other end of the lower wing is bent in the lower direction so as to be freely movable.
The connecting portion
A first connecting portion to which a vertically rotating motor is coupled to the tip so as to rotate one of the pair of pivoting portions; And a second connection portion which is coupled to the other one of the pair of the rotation portions through a bearing; / RTI >
The control unit includes:
A vertical adjustment unit coupled to a lower portion of the rotary unit and rotatable with the rotary unit; And a horizontal adjuster coupled to a lower end of the vertical adjuster and swinging up and down; A left and right rotation motor is disposed between the horizontal adjuster and the seat so as to be orthogonal to the rotational direction of the up and down motor to rotate the seat in a lateral direction,
The ultrasonic oscillator includes:
A first output for generating a frequency of 20 to 24 Khz; A second output for generating a frequency of 25 to 29 Khz; A third output for generating a frequency of 30 to 34 Khz; A pattern generator for generating an irregular arbitrary pattern and transmitting the signal to a control unit; And a power supply unit that arbitrarily turns on or off power supplied to any one of the first to third output units in response to a signal transmitted from the controller. Wherein the camera is mounted on a vehicle.
The apparatus according to claim 1,
A hinge shaft rotatably connected to the first connection unit or the second connection unit;
A forward pivotal portion fixedly coupled forwardly of the hinge axis and coupled to a plurality of balanced multi-stages; And
A rear pivotal portion coupled to the rear of the hinge shaft so as to be vertically rotatable and coupled to a plurality of balance additional multi-stages; , ≪ / RTI &
The balance weight may include an entrance portion provided with a detachment preventing portion so as to be housed inside or protrude outward; And an insertion portion formed at a lower portion of the entry portion and having a relatively larger diameter than the entry portion; / RTI >
Wherein the release preventing portion includes a stop member housed inside the release preventing hole or exposed to the outside and an elastic device provided inside the release preventing hole to provide an elastic force to the stop member,
The insertion portion includes an insertion groove having a diameter that is relatively larger than a diameter of the entrance portion, a stop groove formed to be recessed inside the insertion portion, and a separation hole formed vertically through the insertion portion, Wherein the camera is mounted on a vehicle.

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