KR20000018767U - A ventilation equipment - Google Patents

A ventilation equipment Download PDF

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Publication number
KR20000018767U
KR20000018767U KR2019990004952U KR19990004952U KR20000018767U KR 20000018767 U KR20000018767 U KR 20000018767U KR 2019990004952 U KR2019990004952 U KR 2019990004952U KR 19990004952 U KR19990004952 U KR 19990004952U KR 20000018767 U KR20000018767 U KR 20000018767U
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KR
South Korea
Prior art keywords
blade
opening
closing
closed
hole
Prior art date
Application number
KR2019990004952U
Other languages
Korean (ko)
Inventor
조현식
Original Assignee
조현식
주식회사 동영산업
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 조현식, 주식회사 동영산업 filed Critical 조현식
Priority to KR2019990004952U priority Critical patent/KR20000018767U/en
Publication of KR20000018767U publication Critical patent/KR20000018767U/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1413Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1486Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by bearings, pivots or hinges
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1433Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1446Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with gearings

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

강제개폐식은 수동으로만, 자동개폐식은 풍압에 의해서만 블레이드를 동작시킬 수 있는 종래의 환풍장치와는 달리, 본 고안 환풍장치는 블레이드가 수동 또는 전동장치에 의해 강제개폐가 가능하면서, 또한 풍압에 의해서 스스로 열고 닫히는 자동개폐도 가능하게 한 것으로, 강제개폐와 자동개폐식을 동시에 만족하는 장소, 즉 아파트나 건물등의 에어컨 보관실의 환풍장치 등에 사용을 용이하게 하는 효과를 갖는 것이다.Unlike the conventional ventilating device which can operate the blade by manual pressure only, manual opening and closing type by wind pressure, the ventilating device of the present invention can be forcibly opened and closed by manual or power transmission device. The automatic opening and closing of the self opening and closing is also possible, and has the effect of facilitating the use of the ventilation device of an air-conditioned storage room such as an apartment or a building that satisfies the forced opening and closing automatically at the same time.

Description

환풍장치{A VENTILATION EQUIPMENT}Ventilation unit {A VENTILATION EQUIPMENT}

본 고안은 환풍장치에 관한 것으로, 특히 블레이드의 강제개폐가 가능하면서, 또한 풍압에 의해서도 블레이드가 열릴 수 있도록 구성된 강제개폐식와 자동개폐식을 겸용하는 환풍장치에 관한 것이다.The present invention relates to a ventilator, and more particularly, to a ventilator that combines forced opening and closing, which is capable of forcibly opening and closing the blade and also being opened by wind pressure.

종래의 환풍장치는 대개 에어컨(실외기)를 보관한 보관실의 입구에 설치하거나 실내 배기를 위한 덕트(duct), 실외 공기의 흡입을 위한 지붕(roof)등에 사용되는 것으로, 환풍입구를 차단하고 있는 블레이드가 실내의 풍압에 의해 자동으로 개폐되는 방식을 사용하거나, 수동에 의해 열고 닫는 구조로 되어있다.Conventional ventilators are usually installed at the entrance of a storage room where air conditioners (outdoor units) are stored, or used for ducts for indoor exhaust, roofs for intake of outdoor air, and the like, which block the ventilation openings. It is designed to open or close automatically by the method of opening and closing automatically by the wind pressure in the room.

즉 종래의 환풍장치는 풍압에 의해 블레이드가 개폐되는 구조과 강제적으로 블레이드를 개폐하는 구조중 어느 하나만을 선택적으로 사용하는 것으로, 지금까지 블레이드를 강제적으로 개폐되도록 하면서 또 풍압에 의해서도 개폐가 가능하도록 하는 환풍장치는 전혀 안출된 바 없다.That is, the conventional ventilator selectively uses only one of a structure in which the blade is opened and closed by wind pressure and a structure in which the blade is forcibly opened and closed. Thus, a vent that allows the blade to be forcibly opened and closed by wind pressure. The device was never devised.

이를 다시 상세히 설명하면 종래의 환풍장치는 도 6에 도시한 바와같이 블레이드의 축에 연결된 손잡이를 상하로 움직여 강제적으로 블레이드를 열고 닫는 강제개폐적인 구조를 갖는 것과, 도 7에 도시된 바와같이 힌지축에 의해 결합된 블레이드가 풍압에 의해서만 열리고 닫히는 자동개폐적인 구조를 갖는 것이 두가지 종류만 사용되고 있는 것이다.In detail, the conventional ventilation apparatus has a forced opening and closing structure for forcibly opening and closing the blade by forcibly moving the handle connected to the shaft of the blade up and down as shown in FIG. 6, and as shown in FIG. 7. Only two types are used, which have a self-opening structure in which the blade coupled by the blade is opened and closed only by wind pressure.

따라서 종래의 환풍장치는 수동 또는 전동장치에 의해 블레이드를 열고닫는 강제개폐식과 풍압에 의해 블레이드를 열고 닫는 자동개폐식을 병행하여 사용하여야 하는 장소에는 사용할 수 없는 폐단을 갖는 것이었다.Therefore, the conventional ventilator has a closed end that cannot be used in a place where a forced opening and closing method of opening and closing the blade by manual or power transmission and an automatic opening and closing method of opening and closing the blade by wind pressure are used in combination.

따라서 본 고안은 상기와 같은 폐단을 해결하기 위하여 안출된 것으로써, 프레임에 내장되는 다수개의 블레이드를 블레이드고정구에 의해 결합하고, 상기 블레이드고정구의 중간부는 축에 의해 회동가능토록 결합하고, 전방 힌지부는 세로대에 결합되도록 하되 상기 서로대의 일측에 통공을 형성하여 상기 통공에 내삽되는 걸이구에 의해 블레이드가 상하로 구동될 수 있도록 하고, 상기 걸이구는 걸이구 승하강수단에 의해 승하강되어져 블레이드를 개폐될 수 있도록 하는 것이다.Therefore, the present invention has been devised to solve such a closed end, a plurality of blades built into the frame is coupled by the blade fastener, the middle portion of the blade fastener is coupled to be pivotable by the shaft, the front hinge portion It is to be coupled to the longitudinal pole to form a through-hole on one side of each other so that the blade can be driven up and down by the hook hole interpolated in the through hole, the hanger is raised and lowered by the hook opening and lowering means to open and close the blade To make it possible.

도 1 - 본 고안의 사시도.1-a perspective view of the present invention.

도 2 - 본 고안의 분리사시도.Figure 2-An exploded perspective view of the present invention.

도 3 - 본 고안의 일부분을 절개한 개략적인 단면도로써 블레이드가 열린상태.Fig. 3-A schematic cross sectional view of a portion of the present invention in an open state;

도 4 - 본 고안의 일부분을 절개한 개략적인 단면로써 블레이드가 닫힌상태.Figure 4-Closed blade with a schematic cross-section cut away a portion of the present invention.

도 5 - 본 고안의 일부분을 절개한 상태의 평면도5-a plan view of a state in which a part of the present invention is cut out

도 6 - 본 고안에 있어서 걸이구 승하강수단의 다른 일실시예를 도시한 참고도.Figure 6-reference diagram showing another embodiment of the hook mechanism lifting means in the present invention.

도 7 - 본 고안에 있어서 걸이구 승하강수단의 다른 일실시예를 도시한 참고도.Figure 7-reference diagram showing another embodiment of the hook mechanism lifting means in the present invention.

도 8 - 종래의 강제개폐식 환풍장치의 사시도.8-perspective view of a conventional forced opening and closing ventilator.

도 9 - 종래의 자동개폐식 환풍장치의 단면도.9 is a cross-sectional view of a conventional automatic opening and closing ventilator.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1: 환풍장치(draf damper)1: draft damper

10: 프레임 11: 전면판10: frame 11: front panel

20: 블레이드(blade) 30: 블레이드고정구20: blade 30: blade fixture

40: 축 50: 세로대 51: 통공40: axis 50: length 51: through hole

60: 힌지부 70: 걸이구60: hinge part 70: hook

80: 걸이구 승하강수단 81: 솔레노이드80: hanger lifting means 81: solenoid

81a: 로드 81b: 연결구81a: Rod 81b: End Connection

82: 모터 82a: 피니언82: motor 82a: pinion

82b: 래크 82c: 연결구82b: rack 82c: end connection

90: 손잡이90: handle

91: 손잡이 결착구 92: 손잡이 힌지축91: handle fastener 92: handle hinge axis

100: 종래의 환풍구 102: 블레이드100: conventional vent hole 102: blade

103: 축 104: 손잡이103: axis 104: handle

200: 종래의 다른 환풍구 202: 블레이드200: another conventional vent 202: blade

203: 축203: axis

본 고안의 구성을 첨부한 도면에 의해 상세히 설명하면 다음과 같다.Referring to the configuration of the subject innovation in detail as follows.

도 2는 본고안의 전체적인 구성을 보이기 위한 분리사시도로써, 프레임(10)과, 상기 프레임(10)에 내장되는 다수개의 블레이드(30)와, 상기 블레이드(30)를 구동하기 위한 수단으로 이루어지는 환풍장치에 있어서 상기 환풍장치(1)의 블레이드(30)가 블레이드고정구(30)에 의해 결합되고, 상기 블레이드고정구(30)의 중간부는 축(40)에 의해 회동가능토록 결합하고, 상기 블레이드고정구(30)의 전방에 형성된 힌지부(60)는 통공(51)을 구비하는 세로대(50)에 역시 회동가능토록 결합하되, 상기 세로대(50)는 전면판(11)에 장착된 걸이구 승하강수단(80)과 상기 걸이구 승하강수단(80)에 의해 구동되는 걸이구(70)에 의해 승하강될 수 있도록 하였다.FIG. 2 is an exploded perspective view showing the overall configuration of the present invention, and includes a frame 10, a plurality of blades 30 embedded in the frame 10, and a ventilation device including means for driving the blades 30. In the blade 30 of the ventilator (1) is coupled by a blade fixture 30, the middle portion of the blade fixture 30 is coupled to be rotatable by the shaft 40, the blade fixture 30 Hinge portion (60) formed in front of the) is coupled to the turntable 50 also having a through hole 51 so as to be rotatable, the stand 50 is a hook opening and lowering means mounted on the front plate (11) 80) and the hook hole can be lifted up and down by the hook hole 70 driven by the lifting means (80).

이때 상기 세로대(50)에 천공된 통공(51)은 본고안 환풍장치(1)를 강제개폐 또는 자동개폐를 가능하게 하는 매우 중요한 구성으로, 즉 도 3 및 도 4에 도시한 바와같이 걸이구(70)의 끝단이 세로대(50)에 결합되어지는 것이 아니라, 통공(51)내에서 이동할 수 있는 약간의 간격을 가지도록 형성되어 있다.At this time, the through hole 51 drilled on the vertical pole 50 is a very important configuration that enables the forced opening or closing of the ventilation device 1 of the present invention, that is, as shown in Figs. The end of 70 is not coupled to the vertical pole 50, but is formed to have a slight gap that can move in the through hole 51.

걸이구(70) 끝단의 통공(51) 내에서의 위치는 블레이드(20)가 닫혀진 상태에서 통공(51) 중간에 위치하는 것이 가장 바람직하다. 왜냐하면 걸이구(70)의 끝단이 통공(51)의 중앙에 위치하므로써 세로대(50)의 움직임에 영향을 미치지 않게 되고, 이로인해 블라이드(20)가 풍압에 의해서 스스로 열릴 수 있게 되는 것이다.The position in the through hole 51 at the end of the hook 70 is most preferably located in the middle of the through hole 51 with the blade 20 closed. Because the end of the hook (70) is located in the center of the through hole 51 does not affect the movement of the vertical pole 50, thereby the blade 20 can be opened by themselves by the wind pressure.

또한 도 3과 같이 블레이드(20)를 강제적으로 열고자 할 때에는 축에 의해 회동가능한 손잡이(90)를 위로 올리게 되면 걸이구 승하강수단(80)에 의해 걸이구(70)가 하강하면서 통공(51)의 중앙에 위치하고 있던 걸이구(70)의 끝단은 통공(51)의 하단에 걸려 세로대(50)를 하방으로 끌어 당기게 되어 블레이드(20)가 강제적으로 열리게 되는 것이다. 상기 블레이드(20)는 블레이드고정구(30)에 의해 세로대(5)와 연결되어 있으며, 또한 상기 블레이드고정구(30)는 축(40)에 의해 회동가능토록 프레임(10)에 결합되어 있다.In addition, when forcibly opening the blade 20, as shown in Figure 3 when the handle 90, which can be rotated by the shaft is raised up, the hook hole 70 is lowered by the hook hole lifting means 80 while the through hole 51 The end of the hook (70) located in the center of the hook is caught by the lower end of the through hole (51) to pull the vertical pole 50 downward is to open the blade 20 forcibly. The blade 20 is connected to the longitudinal pole 5 by the blade fixture 30, and the blade fixture 30 is coupled to the frame 10 so as to be rotatable by the shaft 40.

반면에 반대로 블레이드(20)를 강제적으로 닫고자 할 때에는 손잡이(90)를 아래로 내려 걸이구 승하강수단(80)에 의해 걸이구(70)를 상승시키게 되면 세로대(50)에 대한 걸이구(70)의 견인력이 해소되므로써 블레이드(20)의 자중(自重)에 의해 블레이드(20)가 닫히게 되는 것이다.On the other hand, when the blade 20 is to be forcibly closed, the handle 90 is pushed down to raise the hook 70 by the hook hole lowering means 80. As the traction force of 70 is eliminated, the blade 20 is closed by the own weight of the blade 20.

또한 상기와 같은 구조의 걸이구 승하강수단(80)에 의해 블레이드(20)를 강제적으로 개폐시킬 수도 있으나, 전원(電源)에 의해 구동되는 장치로 이루어지는 걸이구 승하강수단(80)에 의해 걸이구(70)를 구동시킬 수도 있다.In addition, although the blade 20 can be forcibly opened and closed by the hook opening and lowering means 80 having the structure as described above, the hooking and lowering means 80 is constituted by a device driven by a power source. The sphere 70 can also be driven.

이로인해 도 6과 도 7에 도시한 바와같은 솔레노이드(81)나 모터(82)등 전동장치로 이루어지는 걸이구 승하강수단(80)에 의해 에어컨의 구동시 입력되는 전원을 입력받아 에어컨보관실의 입구에 설치된 본고안 환풍장치의 블레이드를 열고 닫을 수 있도록 구성할 수도 있다.Due to this, the power input when the air conditioner is driven by the hook opening / lowering means 80 made of the electric device such as the solenoid 81 or the motor 82 as shown in FIGS. 6 and 7 receives the entrance of the air conditioner storage room. It can also be configured to open and close the blades of this draft ventilator.

이를 다시 상세히 설명하면 다른 실시예의 걸이구 승하강수단(80)으로 도 6에 도시된 바와같은 로드(81a)를 구비하는 솔레노이드(81)를 전면판(11)에 장착하고, 상기 솔레노이드(81) 로드(81a)는 연결구(81b)에 의해 걸이구(70)와 결합되도록 하므로써 전원이 공급되면 솔레노이드(81)가 구동되면서 로드(81a)가 하강되고, 결국 걸이구(70)를 하강시켜 블레이드(20)를 강제적으로 오픈시킬 수 있게 할 수도 있는 것이다.In detail, the solenoid 81 having the rod 81a as shown in FIG. 6 is mounted on the front plate 11 as the hook mechanism lifting means 80 of another embodiment, and the solenoid 81 The rod 81a is coupled to the hooking hole 70 by the connector 81b so that when the power is supplied, the solenoid 81 is driven while the rod 81a is lowered, and the hooking hole 70 is lowered to lower the blade ( 20 may be forced to open.

물론 전원이 차단되면 솔레노이드(81)의 로드는 견인력을 상실하게 되므로 블레이드(20)의 자중(自重)에 의해 닫아지게 된다.Of course, when the power is cut off, the rod of the solenoid 81 loses traction and is closed by the weight of the blade 20.

또 다른 걸이구 승하강수단(80)의 실시예로는 도 7에 도시한 바와같은 래크(82b)와 피니언(82c)를 구비하는 모터(82)로 구성될 수도 있다. 즉 상기 모터(82)를 환풍장치(1)의 프레임 일측에 고정시키고, 상기 모터(82)의 구동에 의해 모터(82) 축에 형성된 피니언(82a)이 걸이구(70)에 연결구(82c)로 결합된 래크(82b)를 승하강시켜 블레이드(20)를 개폐시킬 수도 있는 것이다.Another embodiment of the hanger lifting means 80 may be composed of a motor 82 having a rack 82b and a pinion 82c as shown in FIG. That is, the motor 82 is fixed to one side of the frame of the ventilator 1, and the pinion 82a formed on the shaft of the motor 82 by the driving of the motor 82 is connected to the hook 70 by the connector 82c. By raising and lowering the combined rack 82b, the blade 20 may be opened and closed.

이처럼 본 고안 환풍장치(1)는 강제 또는 전동장치에 의해서 개폐가 가능하면서도, 또한 닫혀있던 블레이드(20)라도 걸이구(70)의 끝단이 통공(51)의 중앙에 위치하고 있어 종래의 환풍장치(100,200)와는 달리 블레이드(20)을 구속하고 있지 않으므로 풍압에 의해서도 블레이드(20)가 자동개폐될 수 있는 구조를 갖는 것이다.In this way, the ventilator 1 of the present invention can be opened and closed by a forced or electric device, and the end of the hook 70 is located at the center of the through hole 51 even when the blade 20 is closed. Unlike the 100 and 200, the blade 20 is not restrained, and thus the blade 20 is automatically opened and closed by wind pressure.

이처럼 본 고안 환풍장치는 블레이드가 수동과 전동장치에 의해 강제개폐될 수도 있으며, 또 풍압에 의해서도 개폐될 수 있는 구조이므로 종래 강제개폐 또는 자동개폐중 어느 한가지 구조만을 가질 수 밖에 없었던 종래의 환풍장치에 비해 훨씬 넓은 이용범위를 가지며, 강제개폐식와 자동개폐식을 겸용하여야 하는 장소의 환풍장치 등으로 용이하게 사용할 수 있는 효과를 갖는 것이다.Thus, the ventilating device of the present invention may be forcibly opened and closed by the manual and power transmission device, and can also be opened and closed by the wind pressure. Therefore, the ventilation device of the present invention had to have only one of the conventional forced opening and closing. Compared to having a much wider range of use, it is possible to easily use as a ventilating device of a place where the forced opening and closing mode should be combined.

Claims (2)

프레임(10)과, 상기 프레임(10)에 내장되는 다수개의 블레이드(30)와, 상기 블레이드를 구동하기 위한 수단으로 이루어지는 환풍장치에 있어서 상기 환풍장치(1)의 블레이드(20)가 블레이드고정구(30)에 의해 결합되고, 상기 블레이드고정구(30)의 중간부는 축(40)에 의해 회동가능토록 결합하고, 상기 블레이드고정구(30)의 전방에 형성된 힌지부(60)는 통공(51)을 구비하는 세로대(50)에 역시 회동가능토록 결합하되, 상기 세로대(50)는 전면판(11)에 장착된 걸이구(70)와 상기 걸이구(70)를 구동하기 위한 걸이구 승하강수단(80)에 의해 승하강되도록 하므로써 블레이드(20)가 개폐되도록 구성함을 특징으로 하는 환풍장치.In the ventilation device including a frame 10, a plurality of blades 30 embedded in the frame 10, and a means for driving the blades, the blades 20 of the ventilation device 1 may include a blade fixing tool ( 30 is coupled to the middle of the blade fixture 30 so as to be rotatable by the shaft 40, the hinge portion 60 formed in front of the blade fixture 30 is provided with a through hole 51 Is coupled to the turntable 50 so as to be rotatable, the stand 50 is a hook opening and lowering means for driving the hanger 70 and the hanger 70 mounted on the front plate 11 (80) Ventilation apparatus characterized in that the blade 20 is configured to be opened and closed by being raised and lowered by). 제 1항에 있어서 상기 걸이구 승하강수단(80)이 로드(81a)를 구비하는 솔레노이드(81) 또는 래크(82b)와 피니언(82c)을 구비하는 모터(82)로 구성되어짐을 특징으로 하는 환풍장치.The hanger lifting means (80) according to claim 1, characterized in that the hanger elevating means (80) is composed of a solenoid (81) having a rod (81a) or a motor (82) having a rack (82b) and a pinion (82c). Ventilation system.
KR2019990004952U 1999-03-24 1999-03-24 A ventilation equipment KR20000018767U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210071667A (en) * 2019-12-06 2021-06-16 주식회사 무하기술 Integrated environmental detection terminal with filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210071667A (en) * 2019-12-06 2021-06-16 주식회사 무하기술 Integrated environmental detection terminal with filter

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