KR20160069641A - Apparatus for suction using Coanda nozzle - Google Patents

Apparatus for suction using Coanda nozzle Download PDF

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Publication number
KR20160069641A
KR20160069641A KR1020140175455A KR20140175455A KR20160069641A KR 20160069641 A KR20160069641 A KR 20160069641A KR 1020140175455 A KR1020140175455 A KR 1020140175455A KR 20140175455 A KR20140175455 A KR 20140175455A KR 20160069641 A KR20160069641 A KR 20160069641A
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KR
South Korea
Prior art keywords
suction
air
compressed air
coanda nozzle
nozzle
Prior art date
Application number
KR1020140175455A
Other languages
Korean (ko)
Inventor
심성훈
정상현
김한석
Original Assignee
한국기계연구원
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Priority to KR1020140175455A priority Critical patent/KR20160069641A/en
Publication of KR20160069641A publication Critical patent/KR20160069641A/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0809—Loosening or dislodging by blowing ; Drying by means of gas streams
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0809—Loosening or dislodging by blowing ; Drying by means of gas streams
    • E01H1/0818—Loosening or dislodging by blowing ; Drying by means of gas streams in apparatus with mechanical loosening or feeding instruments, e.g. brushes, scrapers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum

Abstract

The present invention relates to a suction device using a Coanda nozzle, comprising: a moving means; The compressed air is supplied to the inside and the outside air is drawn into the inside by the compressed air injected into the inside so as to be sucked through the air suction part and discharged to the air discharging part; A compressed air storage tank provided in the moving means for supplying compressed air to the Coanda nozzle; A compressor connected to the compressed air storage tank and provided in the moving means; A suction pipe connected to the air suction part of the Coanda nozzle; And a discharge pipe connected to the air discharge portion of the Coanda nozzle; The present invention relates to a suction device using a coanda nozzle which can suck snow, dirt, and the like to one side and continuously discharge the same to the other side.

Description

[0001] Apparatus for suction using Coanda nozzle [0002]

The present invention relates to a suction device using a Coanda nozzle, compressing air through a compressor, storing the compressed air in a compressed air storage tank, supplying stored compressed air to a coanda nozzle to generate a suction force, And to a suction device using a coanda nozzle which can be used for various purposes such as a snow remover, a road cleaner, a fallen leaf cleaner, and the like.

Generally, a road cleaner or a leaf-litter cleaner generates a suction force by using a vacuum pump and sucks dust, waste, cigarette butts and leaves by using the suction force, and the foreign substances and air sucked are filtered through a filter part, . Also, the snow plow can be constructed to generate suction force by using a vacuum pump to suck the snow and discharge it through the discharge port, or a snow shovel loader, a bulldozer, and a mechanical snow plow installed on the front of the vehicle So that it can be moved to one side.

However, since a device for sucking and removing snow and dirt by generating a suction force by using a vacuum pump uses a vacuum pump, only clean air that has been sucked in or sucked in is sucked into the discharge port through the vacuum pump, It is necessary to provide a filter unit capable of filtering and removing foreign matter, and accordingly, a device capable of separately discharging filtered snow and foreign substances must be provided, and there is a limit to continuously remove snow or fallen leaves have. In addition, when a snow shovel loader, a bulldozer, and a mechanical snow removal device (blade) installed on the front of a vehicle are used for snow removal, it is possible to remove the snow on the floor but it is difficult to remove snow piled up above the floor such as a building roof.

KR 20-0357562 (July 19, 2004)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a coin nozzle which is supplied with compressed air and sucks snow or dirt, And a suction device using a Coanda nozzle.

According to an aspect of the present invention, there is provided a suction device using a Coanda nozzle, The compressed air is supplied to the inside and the outside air is drawn into the inside by the compressed air injected into the inside so as to be sucked through the air suction part and discharged to the air discharging part; A compressed air storage tank provided in the moving means for supplying compressed air to the Coanda nozzle; A compressor connected to the compressed air storage tank and provided in the moving means; A suction pipe connected to the air suction part of the Coanda nozzle; And a discharge pipe connected to the air discharge portion of the Coanda nozzle; And a control unit.

In addition, the Coanda nozzle may include a compressed air inlet connected to the compressed air storage tank to receive compressed air; A compressed air direction guiding part for spraying compressed air in an inclined direction toward the air discharge part on the side of the air suction part; A curved portion protruding from the inner circumferential surface so as to form a gap with the compressed air direction guiding portion and formed so as to narrow the diameter of the inner flow path; And a gap adjusting handle screwed to the air discharging portion of the Koanda nozzle and coupled to the curved portion at one side thereof, wherein the size of the gap is adjusted by rotation of the gap adjusting handle .

In addition, a connecting part is fixed to the moving means, a coanda nozzle is installed and fixed in the middle of the connecting part, a suction pipe is connected to one side of the connecting part, and a discharge pipe is connected to the other side.

In addition, the suction pipe and the discharge pipe may be formed by flexible pipes that can be bent and fixed in shape and can be adjusted in length.

The suction pipe may include a suction pipe formed of a straight tube or a curved tube; And a corrugator connecting the suction stand and the Koanda nozzle; And a control unit.

Further, the suction boss is formed with a handle.

Further, the moving means is a wheel drive type vehicle or an endless track type drive vehicle.

Further, the moving means is an agricultural management unit, and the compressor is connected to and driven by an engine of an agricultural management unit.

The suction device using the Coanda nozzle of the present invention comprises: an engine; A blower or compressor connected to the engine to compress air; A compressed air supplied from the blower or the compressor is injected into the inside of the compressor, the outside air is drawn into the inside by compressed air injected into the inside, and is sucked through the air suction unit and discharged to the air discharge unit. A suction pipe connected to the air suction part of the Coanda nozzle; And a discharge pipe connected to the air discharge portion of the Coanda nozzle; And a control unit.

Further, the blower or compressor and the Coanda nozzle are connected by a flexible flexible tube.

In addition, a handle is formed on the suction pipe or the discharge pipe, a control unit is formed on the handle, the control unit is connected to the engine, and the rotation speed of the engine is controlled by the operation of the control unit.

The suction device using the Coanda nozzle of the present invention can suck and discharge continuously without lowering the suction pressure, so that it can effectively remove snow and dirt effectively.

1 is a schematic view showing a suction apparatus using a Coanda nozzle according to a first embodiment of the present invention;
2 is a cross-sectional view of a Coanda nozzle according to the present invention.
3 is a schematic view showing a suction apparatus using a Coanda nozzle according to a second embodiment of the present invention;
4 is a schematic view showing an embodiment of a suction pipe according to the present invention.
5 is a schematic view showing a suction device using a Coanda nozzle according to a third embodiment of the present invention.
FIG. 6 is a schematic view showing a suction apparatus using a Coanda nozzle according to a fourth embodiment of the present invention; FIG.

Hereinafter, the suction device using the Coanda nozzle of the present invention will be described in detail with reference to the accompanying drawings.

≪ Example 1 >

1 is a schematic view showing a suction apparatus using a Coanda nozzle according to a first embodiment of the present invention.

As shown in the drawings, a suction apparatus 1000 using a Coanda nozzle according to the first embodiment of the present invention includes a moving means 100; The compressed air is supplied to the inside and the outside air is drawn into the inside by the compressed air injected into the inside so that it is sucked through the air suction part 230 and discharged to the air discharging part 240, A Coanda nozzle 200 provided in the main body 100; A compressed air storage tank 600 provided in the moving means 100 for supplying compressed air to the Coanda nozzle 200; A compressor 700 connected to the compressed air storage tank 600 and provided in the moving means 100; A suction pipe (400) connected to the air suction part (230) of the Coanda nozzle (200); And a discharge pipe (500) connected to the air discharge part (240) of the Coanda nozzle (200). . ≪ / RTI >

First, the moving means 100 may be various means capable of moving, such as a vehicle or a construction machine, and a bogie that can be moved by a worker to a workforce may also be used.

The coanda nozzle 200 is supplied with the compressed air, and the compressed air is injected into the inside of the coanda nozzle 200. The coanda nozzle 200 is rotated by the air suction part 230 by the coanda effect generated by the compressed air injected into the coanda nozzle 200 And the air is sucked in and discharged to the air discharging part 240 through the air blower.

Compressed air is stored in the compressed air storage tank 600. The compressed air storage tank 600 is connected to the Coanda nozzle 200 so that compressed air can be injected into the Coanda nozzle 200 do. The compressed air storage tank 600 may be fixed to the moving means 100. In addition, an open / close valve may be provided on the pneumatic line connecting the compressed air storage tank 600 and the coanda nozzle 200 to supply and shut off compressed air to the coanda nozzle 200. In addition, the compressed air storage tank 600 may be provided with a relief valve and a pressure gauge capable of confirming the pressure, which can prevent the pressure from rising above a specific pressure.

The compressor 700 compresses outside air and supplies the compressed air to the compressed air storage tank 600. At this time, the compressed air storage tank 600 is provided with a pressure switch, and the pressure switch is connected to the compressor 700. When the pressure inside the compressed air storage tank 600 is lower than a predetermined value, the compressor 700 is operated, The operation of the compressor 700 is stopped so that the pressure inside the compressed air storage tank 600 can be maintained within the set range. In addition, the compressor 700 can be fixed to the moving means 100, and can be driven in connection with the engine so that the moving means 100 can be used as a power source when the vehicle is an engine-driven vehicle. However, when there is no power source of the moving means 100 or when the engine is not used, the compressor 700 may be driven by using a separate engine, a generator, and a battery.

The suction pipe 400 may extend toward one end to be sucked and the other end may be connected to the air suction unit 230 of the coanda nozzle 200.

One end of the discharge pipe 500 is connected to the air discharge part 240 of the coanda nozzle 200 and the other end of the discharge pipe 500 may extend toward a direction to discharge the sucked substance and air.

When the compressed air is supplied to the coanda nozzle 200, a suction force is generated to suck the air and the snow or dirt to be sucked into the one end of the suction pipe, and discharge air and materials sucked in the desired direction through the discharge pipe can do.

Accordingly, the suction device using the Coanda nozzle of the present invention can suck and discharge continuously without lowering the suction pressure, so that it can effectively remove snow and dirt effectively. Particularly, it is not necessary to have a separate filter unit or a separate device for discharging filtered snow or foreign matter, and continuous operation is possible.

At this time, the Coanda nozzle 200 includes a compressed air inflow part 210 connected to the compressed air storage tank 600 to receive compressed air; A compressed air direction inducing unit 250 for injecting compressed air in an inclined direction toward the air discharging unit 240 at the air suction unit 230 side; A curved portion 260 projecting from the inner circumferential surface so as to form the compressed air direction guiding portion 250 and the gap 255 to narrow the inner flow path 220; And a gap adjustment handle (290) screwed to the air discharge portion (240) of the Coanda nozzle (200) and coupled to the curved portion (260) at one side thereof, The size of the gap 255 can be adjusted by rotation of the handle 290.

2, the Coanda nozzle 200 is an air discharge unit 240 through which one side receives air sucked and sucked by the outside air, and the other side discharges the sucked air, and the Coanda nozzle 200 The inner flow path 220 is formed so that the air flows. A compressed air inflow part 210 is formed in the outer side of the coanda nozzle 200. The compressed air inflow part 210 inflows compressed air from the compressed air storage tank 600. The compressed air inflow part 210 is formed in the circumferential direction As shown in FIG. The compressed air direction inducing part 250 is formed in an inclined direction toward the air discharging part 240. The compressed air direction guiding part 250 is formed on the inner circumferential surface side to be connected to the air suction part 230, do. The curved portion 260 is formed so as to protrude from the inner circumferential surface so as to form the compressed air direction guiding portion 250 and the gap 255 so that the diameter (inner diameter) of the inner flow path 220 is narrowed. Thus, when the compressed air is injected through the gap 255 into the inside of the coanda nozzle 200, the air flows along the inner circumferential surface where the curved portion 260 is formed, so that the outside air can be attracted and sucked.

A male screw 291 is formed on the outer circumferential surface of the gap adjusting handle 290 and a female screw 270 is formed on the inner circumferential surface of the air discharging portion 240 of the coil inner nozzle 200, The curved portion 260 is screwed to the air discharging portion 240 of the nozzle 200 and the curved portion 260 is coupled to one side of the gap adjusting handle 290 to rotate the gap adjusting handle 290, So that the size of the gap 255 can be adjusted.

As the size of the clearance 255 is adjusted, the amount of outside air introduced into the inside of the coanda nozzle 200 can be adjusted. More specifically, when the pressure of the compressed air to be supplied is high, 290 are rotated to narrow the gap 255 so that the static pressure is lowered in a portion where the inner diameter of the curved portion 255 is small and the dynamic pressure of the air to be flowed is increased so that the outside air is attracted and the air volume to be discharged can be increased. That is, a desired air volume can be obtained by adjusting the size of the gap 255 using the gap adjustment handle 290 according to the capacity and pressure of the compressed air storage tank 600 and the compressor 700 to be used.

An insertion groove 241 is formed in the air discharge portion 240 of the coanda nozzle 200. A spring 280 is inserted into the insertion groove 241 so that the spring 280 is inserted into the coanda nozzle 200, And the gap adjustment handle (290). 3, when the gap adjusting handle 290 is spaced apart from the right side of the air discharging portion 240 of the coanda nozzle 200 by the rotation of the gap adjusting handle 290 to widen the gap 255, The gap adjustment handle 290 may not be easily rotated by vibration or an external force due to the elasticity of the spring 280.

The connection unit 300 is fixed to the moving unit 100 and the coanda nozzle 200 is installed and fixed in the middle of the connection unit 300. The suction pipe 400 is connected to one side of the connection unit 300, And the discharge pipe 500 can be connected to the other side.

That is, the connecting portion 300 is connected to the moving means 100 (not shown) so that the coanda nozzle 200, the suction pipe 400 and the discharge pipe 500 are fixed and the pneumatic line to which the compressed air is supplied to the coanda nozzle 200, The suction pipe 400 is fixed to one side of the connection part 300 and the discharge pipe 500 is fixed to the other side so as to be communicated with each other after the coanda nozzle 200 is connected to the central part of the connection part 300. [ . At this time, since the Coanda nozzle 200 is installed in the connection part 300 and is floating, the pneumatic line to which the compressed air is supplied can be easily connected. Although not shown, a separate support may be formed so that the suction pipe 400 and the discharge pipe 500 can be fixed to the moving means 100 and supported. The side of the connection part 300 connected to the air suction part 230 of the coanda nozzle 200 may be formed as a straight tube having an inner diameter constant and a side connected to the air discharge part 240 may be formed in a direction A taper is formed so that the inner diameter becomes larger as it goes toward the outer side of the air passage.

≪ Example 2 >

3 is a schematic view showing a suction apparatus using a Coanda nozzle according to a second embodiment of the present invention.

As shown in the drawing, the suction pipe 400 and the discharge pipe 400 may be formed of a flexible pipe which can be bent and fixed in shape and can be adjusted in length.

That is, the suction pipe 400 is formed as a flexible pipe and can bend toward a direction to be sucked and can be fixed in a bent shape. The flexible pipe is formed as a corrugated pipe, and the length is increased when pulled, . The discharge pipe 500 may be formed of a flexible pipe as in the case of the suction pipe 400 and may be formed so as to control the direction and length to be discharged.

So that the ends of the suction pipe 400 and the discharge pipe 500 can be disposed in a desired direction and position.

In addition, the suction pipe 400 may include a suction pipe 410 formed of a straight pipe or a curved pipe; A corrugated pipe 420 connecting the suction pedestal 410 and the Coanda nozzle 200; . ≪ / RTI >

4, the suction tube 410 having a long tubular shape is manually held by an operator so that the end of the suction tube 410 can be positioned at a desired position to suck snow or dirt, Can be bent freely and the corrugated pipe 420 can be formed long so as to suck and remove snow or dirt located on the floor as well as on a high place. In addition, the suction table 410 may be formed as a straight tube or a curved tube, and the end of the suction side tube may be formed in a bent shape. The end of the tube may be formed into a long slot shape similar to the suction nozzle of the vacuum cleaner . In addition, it can be formed variously according to the purpose of use or working conditions. Further, the corrugated pipe 420 may be formed of a hose.

Thus, in particular, when it is desired to remove snow accumulated on a roof of a building or an agricultural house, an operator can take in the eyes while moving while holding the suction table 410 and adjust the direction of the discharge tube 500 to discharge the desired position .

In addition, a handle 411 may be formed on the suction table 410.

That is, the grip portion 411 protruding from the suction table 410 may be formed to allow the operator to hold the suction table 410 by hand. At this time, the grip portion 411 may be formed in various shapes, and the grip portion 411 may be formed at two places so as to be held by the operator with both hands.

In addition, the moving means 100 may be a wheel-driven vehicle or an endless-track-driven vehicle. That is, the moving means 100 may be a bogie that can be manually moved by an operator, but may be a wheel-driven vehicle or an infinite-orbital-driven vehicle that is easy to move depending on a place or a working condition.

≪ Example 3 >

5 is a schematic view showing a suction apparatus using a Coanda nozzle according to a third embodiment of the present invention.

As shown in the drawing, the suction device 1000 using the Coanda nozzle according to the third embodiment of the present invention is characterized in that the moving means 100 is formed of an agricultural management unit 110, 110 and the engine 111 of the engine.

At this time, the compressor 700 may be fixed to the agricultural management unit 110 and the compressor 700 may be connected to the engine 111 of the agricultural management unit 110 to be driven. The compressed air storage tank 600 may be mounted on the agricultural management unit 110. However, when the volume of the compressed air storage tank 600 is large, the trailer 120 is connected to the rear of the agricultural management unit 110, (600) may be installed and connected to the compressor (700). Likewise, the connecting part 300 may be fixed to the trailer 120 and the coanda nozzle 200 may be installed to the connecting part 300.

In this case, when the operator removes snow accumulated on the house while moving the agricultural management apparatus 110 between the agricultural houses, the operator can take in the snow while holding the suction table 410, To the desired position. When the agricultural management unit 110 is not used for the snow removal operation, the pneumatic line connecting the compressed air storage tank 600 and the compressor 700 is separated, the trailer 120 is separated from the agricultural management unit 110, May be used.

<Example 4>

6 is a schematic view showing a suction apparatus using a Coanda nozzle according to a fourth embodiment of the present invention.

As shown in the drawing, a suction apparatus 1000 using a Coanda nozzle according to a fourth embodiment of the present invention includes an engine 130; A blower 800 or a compressor 700 connected to the engine 130 to compress air; The compressed air from the blower 800 or the compressor 700 is supplied to the inside and the outside air is drawn into the inside by the compressed air injected into the inside and sucked through the air suction part 230, (240) to be discharged to the outside; A suction pipe (400) connected to the air suction part (230) of the Coanda nozzle (200); And a discharge pipe (500) connected to the air discharge part (240) of the Coanda nozzle (200). . &Lt; / RTI &gt;

This is because the blower 800 or the compressor 700 is used as a compressed air supply source for supplying the compressed air to the coanda nozzle 200 and the blower 800 or the compressor 700 is used as a power source for driving the blower 800 or the compressor 700 130) is used. In addition, the coanda nozzle 200 is the same as the above-described embodiments, and the suction pipe 400 can be configured such that the outside air is sucked and sucked and discharged through the discharge pipe 500. At this time, the engine 130 can generate power by burning the fuel, and the engine 130, the fuel tank 140, and the like can be integrally coupled to the body 150 and can be carried. That is, the shoulder strap 160 can be attached to the body 150 so that the worker can carry it while carrying it on his back.

Here, the suction device 1000 using the Coanda nozzle according to the fourth embodiment of the present invention can suck snow, dirt, and the like to be sucked together with air through the suction pipe 400, Air and materials sucked in the desired direction can be discharged together. In addition, it may be used as a leaf-dropping cleaner or a snow-removing machine which can remove only leaves or snow by blowing out only air by sucking outside air through the suction pipe 400 and discharging through the discharge pipe 500.

The blower 800 or the compressor 700 and the Coanda nozzle 200 may be connected by a flexible flexible tube 430. That is, the pipe to which compressed air is supplied to the coanda nozzle 200 can be easily bent and can be easily used while holding the suction pipe 400 or the discharge pipe 500.

A handle 411 is formed on the suction pipe 400 or the discharge pipe 500 and a control unit 440 is formed on the handle 411 so that the control unit 440 is connected to the engine 130, The rotation speed of the engine 130 can be adjusted by the operation of the controller 440. That is, the grip portion 411 is formed on the suction pipe 400 or the discharge pipe 500 so that the operator can easily use the grip portion 411 while adjusting the grip portion 411 in a desired direction. The grip portion 411 is formed on the grip portion 411, The control unit 440 connected to the control unit 130 controls the rotation speed of the engine 130 to adjust the amount of air sucked and discharged.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It goes without saying that various modifications can be made.

1000: Suction device using Coanda nozzle
100: Moving means 110: Agricultural manager
111: engine 120: trailer
130: engine 140: fuel tank
150: body 160: shoulder strap
200: Coanda Nozzle
210: Compressed air inflow part 220: Internal flow path
230: air suction part 240: air discharge part
241: insertion groove 250: compressed air direction guide portion
255: gap 260:
270: female thread 280: spring
290: gap adjustment handle 291: male thread
300: connection
400: suction pipe
410: suction port 411: handle portion
420: corrugated pipe 430: flexible pipe
440:
500: discharge pipe
600: compressed air storage tank
700: Compressor
800: blower

Claims (11)

transportation;
The compressed air is supplied to the inside and the outside air is drawn into the inside by the compressed air injected into the inside so that it is sucked through the air suction part and discharged to the air discharging part;
A compressed air storage tank provided in the moving means for supplying compressed air to the Coanda nozzle;
A compressor connected to the compressed air storage tank and provided in the moving means;
A suction pipe connected to the air suction part of the Coanda nozzle; And
A discharge pipe connected to the air discharge portion of the Coanda nozzle; And a suction nozzle for sucking the liquid.
The method according to claim 1,
Wherein the Coanda nozzle comprises:
A compressed air inflow portion connected to the compressed air storage tank to introduce compressed air; A compressed air direction guiding part for spraying compressed air in an inclined direction toward the air discharge part on the side of the air suction part; A curved portion protruding from the inner circumferential surface so as to form a gap with the compressed air direction guiding portion and formed so as to narrow the diameter of the inner flow path; And,
And a gap adjusting handle screwed to the air discharging portion of the Coanda nozzle and coupled to the curved portion at one side,
And the size of the gap is adjusted by rotation of the gap adjusting handle.
The method according to claim 1,
A connecting portion is fixed to the moving means,
A coanda nozzle is installed and fixed in the middle of the connection portion,
Wherein a suction pipe is connected to one side of the connection part and a discharge pipe is connected to the other side.
The method according to claim 1,
Wherein the suction pipe and the discharge pipe are formed by flexible pipes that can be bent and fixed in shape and can be adjusted in length.
The method according to claim 1,
The suction pipe may include a suction pipe formed of a straight pipe or a curved pipe; And
A corrugator connecting the suction stand and the Koanda nozzle; Wherein the suction nozzle is a suction nozzle.
6. The method of claim 5,
And a suction part is formed on the suction band.
The method according to claim 1,
Wherein the moving means is a wheel drive type vehicle or an endless track type drive vehicle.
The method according to claim 1,
Wherein the moving means is an agricultural manager,
Wherein the compressor is connected to and driven by an engine of an agricultural management apparatus.
engine;
A blower or compressor connected to the engine to compress air;
A compressed air supplied from the blower or the compressor is injected into the inside of the compressor, the outside air is drawn into the inside by compressed air injected into the inside, and is sucked through the air suction unit and discharged to the air discharge unit.
A suction pipe connected to the air suction part of the Coanda nozzle; And
A discharge pipe connected to the air discharge portion of the Coanda nozzle; And a suction nozzle for sucking the liquid.
10. The method of claim 9,
Wherein the blower or compressor and the Coanda nozzle are connected by a flexible flexible tube.
10. The method of claim 9,
Wherein the suction pipe or the discharge pipe is provided with a handle portion and a control portion is formed on the handle portion so that the control portion is connected to the engine and the rotation speed of the engine is controlled by the operation of the control portion. .
KR1020140175455A 2014-12-09 2014-12-09 Apparatus for suction using Coanda nozzle KR20160069641A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102097469B1 (en) 2018-10-25 2020-04-07 한국기계연구원 Combustion gas recirculation device
CN111074823A (en) * 2020-01-03 2020-04-28 长兴水木机电有限公司 Road garbage cleaning device
CN111119104A (en) * 2020-01-03 2020-05-08 长兴水木机电有限公司 Fallen leaf cleaning device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200357562Y1 (en) 2004-05-11 2004-07-27 김성옥 suction cleaner for street

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200357562Y1 (en) 2004-05-11 2004-07-27 김성옥 suction cleaner for street

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102097469B1 (en) 2018-10-25 2020-04-07 한국기계연구원 Combustion gas recirculation device
CN111074823A (en) * 2020-01-03 2020-04-28 长兴水木机电有限公司 Road garbage cleaning device
CN111119104A (en) * 2020-01-03 2020-05-08 长兴水木机电有限公司 Fallen leaf cleaning device
CN111074823B (en) * 2020-01-03 2021-08-13 潍坊天洁环保科技有限公司 Road garbage cleaning device

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