KR20010061703A - A fixed type ventilator - Google Patents

A fixed type ventilator Download PDF

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Publication number
KR20010061703A
KR20010061703A KR1019990064218A KR19990064218A KR20010061703A KR 20010061703 A KR20010061703 A KR 20010061703A KR 1019990064218 A KR1019990064218 A KR 1019990064218A KR 19990064218 A KR19990064218 A KR 19990064218A KR 20010061703 A KR20010061703 A KR 20010061703A
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South Korea
Prior art keywords
air flow
airflow
guide
airflow guide
flow guide
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KR1019990064218A
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Korean (ko)
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KR100321573B1 (en
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박태업
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박태업
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Application filed by 박태업 filed Critical 박태업
Priority to KR1019990064218A priority Critical patent/KR100321573B1/en
Priority to KR2020000003773U priority patent/KR200189670Y1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/004—Natural ventilation using convection

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)

Abstract

PURPOSE: A fixed type ventilating device is provided, in which a guide blade is arranged between air flow guide disks which are stacked into layers, to thereby achieve an improved air flow. CONSTITUTION: A fixed type ventilating device comprises a first air flow guide disk(100) mounted on the top of the device, and which has an upper air flow cut-off surface(120), a horizontally extended portion(130) with a fixing hole(110), and an inclined peripheral wall(140) inclined toward the upper air flow cut-off surface at a predetermined inclination angle; a second air flow guide disk(200) staked beneath the first air flow guide disk, and which has a horizontally extended portion(230) with a fixing hole(210), an inclined peripheral wall(240) inclined upward from the horizontally extended portion, and a ring type aperture(220) formed at the top of the second air flow guide disk; a conical support(300) having a plurality of support members(310) for supporting the stacked first and second air flow guide disks; coupling members including bolts(410,420) and nuts(430) for coupling air flow guide disks and fixing support members; and a guide member(500) inserted, in a vertical direction, between fixing holes of first and second air flow guide disks. The guide member arranged between inclined peripheral walls of first and second air flow guide disks, serves to guide the air flow in a single direction even when the direction of external air flow changes.

Description

고정식 환기구{A fixed type ventilator}A fixed type ventilator

본 발명은 고정식 환기구에 관한 것이다.The present invention relates to a stationary vent.

환기구는 날개가 회전하는 회전식과 회전수단이 없이 기류흐름만으로 실내기류를 배기시기는 고정식 환기구로 구분된다.Ventilation openings are divided into a rotary type that rotates the wing and a fixed ventilation opening which exhausts the indoor airflow only by the airflow without the rotation means.

종래 본 출원인의 선출원으로 제안된 고정식 환기구를 설명하기 위하여 이하에서는 첨부 도면 도 3의 구조와 부호를 그대로 적용하여 설명하기로 한다.In order to explain the fixed ventilator proposed as a prior application of the present applicant, the following description will apply to the structure and symbols of FIG.

대략, 종래에는 최상층에 위치하고, 상부 기류 차단면(120)을 가지며, 고정공(110)을 형성한 수평연부(130)를 형성하고 이 연부(130)로 부터 상기 차단면(120)을 향하여 경사각을 갖고 경사주벽(140)을 형성한 원판형의 제 1기류안내판(100)과; 상기 제 1기류안내판(100)의 저부에 다수 적층되며, 상기 고정공(110)에 대응 연통하기 위한 고정공(210)을 형성한 수평연부(230)를 형성하고, 이 수평연부(230)에서 상방으로 경사지게 경사주벽(240)을 형성하고, 이 경사주벽(240)의 상방으로 링형의 개구부(220)를 형성한 링형의 제 2기류안내판(200)과; 상기 기류안내판(100)(200)들의 적층 상태를 받쳐주기 위한 소정의 받침구(310)를 구비한 상광하협으로 상하 개구된 원뿔형 받침대(300)와; 상기 받침대(300)에 적층된 상기 기류안내판들(100)(200)을 체결고정하고,받침구(310)을 고정하기 위한 볼트들(410)(420)과,너트(430)등의 체결수단; 및 상기 볼트(410)이 관통하는 관공을 형성하며, 상기 기류안내판들의 고정공(110)(210) 사이에 직립적으로 위치하여 간격을 유지하기 위한 관체(부호생략)를 포함하는 구조로 이루어진다.Approximately, it is conventionally located on the uppermost layer, has an upper airflow blocking surface 120, forms a horizontal edge 130 formed with a fixed hole 110, and an inclination angle from the edge 130 toward the blocking surface 120. A disk-shaped first airflow guide plate 100 having an inclined circumferential wall 140; A plurality of horizontal edges 230 are formed on the bottom of the first airflow guide plate 100 and have fixed holes 210 for communicating with the fixing holes 110. A ring-shaped second airflow guide plate 200 in which an inclined circumferential wall 240 is formed to be inclined upward and a ring-shaped opening 220 is formed above the inclined circumferential wall 240; A conical pedestal 300 which is opened up and down by a vertical light narrowing with a predetermined support port 310 for supporting a stacking state of the airflow guide plates 100 and 200; Fastening means for fastening and fastening the airflow guide plates 100 and 200 stacked on the pedestal 300, and fixing bolts 410 and 420 and nuts 430 to fix the base 310. ; And it forms a hole through which the bolt 410, and consists of a structure including a tube (symbol abbreviation) for maintaining the spacing is located upright between the fixing holes 110, 210 of the airflow guide plate.

따라서 다수 적층된 링형의 기류안내판에 형성된 경사주벽을 따라 상승기류가 형성되어 그 중심을 흐르는 내부기류를 상승시켜 외부로 배기시킴에 있어 효율적으로 기류가 상승,배기되지 못하는 문제점이 있었다.Therefore, there is a problem in that the airflow does not rise and exhaust efficiently in raising the airflow along the inclined circumferential wall formed in the plurality of ring-shaped airflow guide plates to increase the internal airflow flowing through the center thereof and exhausting it to the outside.

그 원인은 외부에서 상승기류를 형성하는 기류가 하나의 방향을 형성하지 못하는 데에 그 원인이 있었다.The cause was that the airflow forming the upward airflow from the outside did not form a single direction.

이에 본 발명은 상기 기류안내판들의 상승기류 형성공간인 경사주벽상에 소정의 안내날개를 형성하여 상승기류의 흐름을 하나의 방향으로 안내하도록 함으로써 실내 배기기류의 흐름을 보다 원활히 배기토록하는 데에 그 목적이 있다.Therefore, the present invention forms a predetermined guide vane on the inclined circumferential wall which is the space for forming the air flow of the airflow guides to guide the flow of the air flow in one direction, so that the air flow of the indoor exhaust air is more smoothly exhausted. There is a purpose.

도 1은 본 발명 고정식 환기구에 적용된 안내날개의 발췌사시도Figure 1 is an exploded perspective view of the guide blade applied to the present invention fixed vents

도 2는 본 발명 고정식환기구의 전체 조립사시도Figure 2 is an overall assembly perspective view of the fixed ring mechanism of the present invention

도 3은 본 발명 고정식 환기구의 분해사시도Figure 3 is an exploded perspective view of the present invention fixed ventilation opening

도 4는 본 발명 고정식 환기구의 조립상태 단면도Figure 4 is a cross-sectional view of the assembled state of the present invention the fixed ventilation opening

※도면의 주요부분에 대한 부호의 설명※ Explanation of symbols for main parts of drawing

100:제 1기류안내판, 110:고정공, 120:차단면, 130:수평연부,100: first air flow guide plate, 110: fixed hole, 120: cut-off surface, 130: horizontal edge,

140:경사주벽, 200:제 2기류안내판, 210:고정공, 220:개구부,140: inclined wall, 200: second air flow guide plate, 210: fixed hole, 220: opening

230:수평연부, 240:경사주벽, 300:받침대, 310:받침구, 320:체결공,230: horizontal edge, 240: inclined wall, 300: support, 310: support, 320: fasteners,

410,420:볼트들,430:너트, 500:가이드부재, 510: 안내날개, 520: 관체,410,420: Bolts, 430: Nut, 500: Guide member, 510: Guide vane, 520: Tube,

530:관통공530: through-hole

이와같은 본 발명의 목적을 달성하기 위하여 본 발명은 다음과 같은 구성으로 그 목적을 달성한다.In order to achieve the object of the present invention as described above, the present invention achieves the object in the following configuration.

즉, 본 발명 고정식 환기구는 상부 기류 차단면을 가진 원판형의 제 1기류안내판과, 상기 제 1기류안내판의 저부에 다수 적층되는 링형의 제 2기류안내판과, 상기 기류안내판들의 적층 상태를 받쳐주기 위한 상광하협으로 상하 개구된 원뿔형받침대와, 상기 받침대에 적층된 상기 기류안내판들을 체결고정하기 위한 체결수단, 및 상기 기류안내판들의 고정공들사이에 수직으로 사이에 끼이게 설치되어 기류안내 간격을 유지함과 동시에 상기 볼트가 관통되는 관통공을 가진 관체를 형성함과 동시에 이 관체의 일측으로 연장되어 상기 기류안내판들의 경사주벽상에 입설되어 기류흐름을 안내하는 안내날개를 형성한 가이드부재로서 달성된다.That is, the fixed vent of the present invention supports a disk-shaped first airflow guide plate having an upper airflow blocking surface, a ring-shaped second airflow guide plate stacked on the bottom of the first airflow guide plate, and a stacking state of the airflow guide plates. Vertically sandwiched between the conical butt opening and the upper and lower openings for fastening, the fastening means for fastening and fastening the airflow guide plates stacked on the pedestal, and the fixing holes of the airflow guide plates to maintain a space between the airflow guide And at the same time forming a tube having a through hole through which the bolt penetrates, and at the same time, is formed as a guide member which extends to one side of the tube and is formed on the inclined circumferential wall of the air flow guide plates to form guide vanes for guiding the flow of air.

따라서 다층으로 직립설치된 기류안내판 사이의 공간을 통한 기류의 흐름이안내날개가 설치됨으로 인해 한 방향으로 모아지는 효과를 거두게 되어 실내 기류의 상승율을 향상하게 되는 특징이 있다.Therefore, the flow of air flows through the space between the airflow guide plates installed upright in a multi-layer has the characteristic that the effect of being collected in one direction due to the installation of the guide wings to improve the rate of increase of indoor airflow.

이하 본 발명의 실시구조를 첨부 도면을 참고로 구체적으로 설명한다. 첨부도면중 도 1은 본 발명 고정시 환기구에 적용된 안내날개의 발췌사시도이고, 도 2는 본 발명 고정식환기구의 전체 조립사시도이며, 도 3은 본 발명 고정시 환기구의분해사시도이다. 이 도면에 따르는 본 발명의 전체구조는, 대략 상부 기류차단면(120)을 가진 원판형의 제 1기류안내관(100)과, 상기 제 1기류안내판(100)의 저부에 다수 적층되는 링형의 제 2기류안내판(200)과, 상기 기류안내판(100)(200)들의 적층 상태를 받쳐주기 위한 상광하협으로 상하 개구된 원뿔형 받침대(300)와, 상기 받침대(300)에 적층된 상기 기류안내판들(100)(200)을 체결고정하기 위한 체결수단 및 상기 기류안내판들(200)(300)의 고정공(110)(210)들사이에 수직으로 사이에 끼이게 설치되어 기류안내 간격을 유지함과 동시에 상기 기류안내판들(100)(200)의 경사주벽(140)(240)상에 입설되어 기류흐름을 안내하는 안내날개(510)를 형성한 가이드부재(500)로 이루어진다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is an exploded perspective view of the guide blade applied to the ventilator when the present invention is fixed, FIG. 2 is an overall assembled perspective view of the fixed ring mechanism of the present invention, and FIG. 3 is an exploded perspective view of the ventilator when the present invention is fixed. The overall structure of the present invention according to this figure is a ring-shaped first plurality of air flow guide pipe 100 having a disk-shaped upper air flow blocking surface 120 and a plurality of laminated on the bottom of the first air flow guide plate 100 A second airflow guide plate 200, a conical pedestal 300, which is vertically opened in a vertical light narrowing to support the stacking state of the airflow guide plate 100, 200, and the airflow guide plates stacked on the pedestal 300 Between the fastening means for fastening and fixing the 100 and 200 and the fixing holes 110 and 210 of the airflow guide plates 200 and 300 are vertically sandwiched between each other to maintain the airflow guide gap. At the same time, the guide member 500 is formed on the inclined circumferential walls 140 and 240 of the airflow guide plates 100 and 200 to form a guide wing 510 to guide the airflow flow.

구체적으로 상기 제 1기류안내판(100)은 상부 기류 차단면(120)을 가지며, 고정공을 형성한 수평연부(130)를 형성하고 이 연부(130)로 부터 상기 차단면(120)을 향하여 경사각을 갖고 경사주벽(140)을 형성한 원판형의 덮개를 이룬다.Specifically, the first airflow guide plate 100 has an upper airflow blocking surface 120, forms a horizontal edge 130 formed with a fixed hole, and the inclination angle from the edge 130 toward the blocking surface 120. It forms a disk-shaped cover having the inclined circumferential wall 140.

제 2기류안내판(200)은 상기 제 1기류안내판(100)의 저부에 다수 적층되며,상기 고정공(110)에 대응 연통하기 위한 고정공(210)을 형성한 수평연부(230)를 형성하고, 이 수평연부(230)에서 상방으로 경사지게 경사주벽(240)을 형성하고, 이 경사주벽(240)의 상방으로 링형의 개구부(220)를 형성한 링형의 구조를 이룬다.A plurality of second airflow guide plate 200 is laminated to the bottom of the first airflow guide plate 100, and forms a horizontal edge portion 230 having a fixing hole 210 for communicating with the fixing hole 110. In addition, the inclined circumferential wall 240 is formed to be inclined upward from the horizontal edge portion 230, and the ring-shaped opening 220 is formed above the inclined circumferential wall 240 to form a ring-shaped structure.

상기 받침대(300)는 상단이 잘리고 상광하협의 대략 원뿔형의 원통으로 상기기류안내판(100)(200)들의 적층 상태를 받쳐주기 위한 체결공(320)을 가진 소정의받침구(310)를 외측에 구비하여서 된다.The pedestal 300 has a predetermined support hole 310 having a fastening hole 320 for supporting the stacking state of the airflow guide plates 100 and 200 in a cylindrical shape of a conical cylinder of the upper and lower sheaths. It should be provided.

체결수단(부호생략)들은 상기 받침대(300)에 적층된 상기 기류안내판들(100)(200)을 체결고정하고,받침구(310)을 고정하기 위한 볼트들(410)(420)과,너트(430)등으로 이루어진다.Fastening means (not shown) are fastening and fastening the airflow guide plates 100 and 200 stacked on the pedestal 300, bolts (410, 420) for fixing the support hole 310, nuts 430 and so on.

상기 가이드부재(500)는 상기 기류안내판들(200)(300)의 고정공(110)(210)들 사이에 수직으로 사이에 끼이게 설치되어 기류안내 간격을 유지함과 동시에 상기 볼트(410)가 관통되는 관통공(530)을 가진 관체(520)를 형성함과 동시에 이 관체(520)의 일측으로 연장되어 상기 기류안내판들(100)(200)의 경사주벽(140)(240)상에 입설되어 기류흐름을 안내하는 안내날개(510)를 형성하여서 된다.The guide member 500 is vertically sandwiched between the fixing holes 110 and 210 of the airflow guide plates 200 and 300 to maintain the airflow guide gap and at the same time the bolt 410 is provided. While forming a tubular body 520 having a through hole 530 therethrough and extending to one side of the tubular body 520, it is placed on the inclined circumferential walls 140 and 240 of the airflow guide plates 100 and 200. To form a guide vane 510 for guiding the airflow.

이와같이 이루어진 본 발명의 작용을 첨부 도면 도 4에서 도시하는 본 발명 고정식 환기구의 조립상태 단면도를 통하여 종래와 비교하여 설명하기로 한다.The operation of the present invention made as described above will be described in comparison with the prior art through the assembled state cross-sectional view of the present invention fixed ventilator shown in FIG.

종래의 고정식 환기구는 본 발명이 적용한 가이드부재(500)가 없었다. 가이드부재(500)가 없는 경우의 기류안내판(100)(200)들의 경사주벽(140)(240)을 통한상승기류의 발생은 정해진 방향없이 흘러들어가 다시 흘러나가는 것이므로 실내기류를 배기하기 위한 벤츄리효과를 극대화할 수가 없었다.In the conventional stationary ventilation port, there was no guide member 500 to which the present invention was applied. Generation of upward airflow through the inclined circumferential walls 140 and 240 of the airflow guide plates 100 and 200 in the absence of the guide member 500 flows out without a predetermined direction and flows out again. Could not maximize.

그 이유는 경사주벽을 향하여 지나가는 기류의 방향이 급격하게 바뀔 경우에는 지속적인 같은 실내기류의 배기흐름을 유지하지 못하기 때문이었다.The reason for this is that if the direction of the airflow passing toward the inclined circumferential wall is suddenly changed, the exhaust airflow of the same indoor airflow cannot be maintained.

따라서 지속적인 실내기류의 배기를 유지하기 위해서는 급격한 외부기류의 방향전환이 있더라도 그 기류의 방향이 하나의 방향을 유지되도록 함이 필요한 것이며 이를 본 발명은 기술적 과제로 하여 해결하게 되는 것이다.Therefore, in order to maintain continuous exhaust of the indoor air flow, even if there is a sudden change in the direction of the external air flow it is necessary to maintain the direction of the air flow is to solve the present invention as a technical problem.

즉, 기류 안내날개(510)를 그동안 간격유지수단으로만 위치하던 관체에 일체로 형성한 가이드부재(500)를 각 기류안내판들사이에 수개 설치하도록 하여 기류의 방향이 바뀌더라도 하나의 일관된 기류흐름을 형성하도록 하는 것이다.That is, a plurality of guide members 500 formed integrally with the airflow guide vanes 510, which are positioned only as the space keeping means, are installed between the respective airflow guide plates, so that a single airflow flows even when the airflow direction is changed. To form.

이에 따라 그동안 기류방향이 급격하게 바뀌는 등의 이유로 상승기류를 제대로 배기시키지 못하던 문제점을 개선하여 지속적으로 실내기류를 배기토록 함으로써 고정식 환기구의 배기효율을 향상시키게 되었다.Accordingly, the problem of failing to properly vent the rising air due to the sudden change of the air flow direction has been improved to exhaust the indoor air continuously, thereby improving the exhaust efficiency of the fixed ventilation port.

본 발명은 다수적층된 기류안내판들사이에 안내날개를 형성함으로써 실내기류상승을 위하여 유도되는 외부기류의 흐르는 방향을 외부기류의 방향이 변경되는 경우에도 항상 같은 방향으로 흐르도록 함으로써 실내에서 외부로 배기되는 기류의 상승효율을 개선하게 되었다.The present invention forms a guide vane between a plurality of laminated airflow guide plate so that the flow direction of the external air induced for the indoor airflow is always flowed in the same direction even when the direction of the external airflow is exhausted from the room to the outside Improved efficiency of rising airflow

Claims (1)

고정식 환기구에 있어서,In the fixed vent, 최상층에 위치하고, 상부 기류 차단면(120)을 가지며, 고정공(110)을 형성한 수평연부(130)를 형성하고 이 연부(130)로부터 상기 차단면(120)을 향하여 경사각을 갖고 경사주벽(14)을 형성한 원판형의 제 1기류안내판(100);Located on the top floor, having an upper airflow blocking surface 120, and forms a horizontal edge 130 formed with a fixing hole 110, and has an inclination angle toward the blocking surface 120 from the edge portion 130 ( A disk-shaped first airflow guide plate 100 having a 14); 상기 제 1기류안내판(100)의 저부에 다수 적층되며, 상기 고정공(110)에 대응 연통하기 위한 고정공(210)을 형성한 수평연부(230)를 형성하고, 이 수평연부(230)에서 상방으로 경사지게 경사주벽(240)을 형성하고, 이 경사주벽(240)의 상방으로 링형의 개구부(220)를 형성한 링형의 제 2기류안내판(200);A plurality of horizontal edges 230 are formed on the bottom of the first airflow guide plate 100 and have fixed holes 210 for communicating with the fixing holes 110. A ring-shaped second airflow guide plate 200 in which an inclined circumferential wall 240 is inclined upward and a ring-shaped opening 220 is formed above the inclined circumferential wall 240; 상기 기류안내판(100)(200)들의 적층 상태를 받쳐주기 위한 소정의 받침구(310)를 구비한 상광하협으로 상하 개구된 원뿔형 받침대(300);A conical pedestal 300 which is opened up and down by a vertical light narrow with a predetermined support port 310 for supporting a stacking state of the airflow guide plates 100 and 200; 상기 받침대(300)에 적층된 상기 기류안내판들(100)(200)을 체결고정하고,받침구(310)을 고정하기 위한 볼트들(410)(420)과,너트(430)등의 체결수단; 및Fastening means for fastening and fastening the airflow guide plates 100 and 200 stacked on the pedestal 300, and fixing bolts 410 and 420 and nuts 430 to fix the base 310. ; And 상기 기류안내판들(200)(300)의 고정공(110)(210)들사이에 수직으로 사이에 끼이게 설치되어 기류안내 간격을 유지함과 동시에 상기 볼트(410)가 관통되는 관통공(530)을 가진 관체(520)를 형성함과 동시에 이 관체(520)의 일측으로 연장되어 상기 기류안내판들(100)(200)의 경사주벽(140)(240)상에 입설되어 기류흐름을 안내하는 안내날개(510)를 형성한 가이드부재(500)를 포함하는 고정식 환기구.It is installed between the fixing holes 110, 210 of the airflow guide plates 200 and 300 vertically sandwiched between the through holes 530 to maintain the airflow guide gap and the bolt 410 at the same time. At the same time to form a tube 520 having a guide to extend on one side of the tube 520 is installed on the inclined circumferential wall (140, 240) of the airflow guide plates 100, 200 to guide the airflow flow Stationary ventilation hole comprising a guide member 500 is formed wing 510.
KR1019990064218A 1999-12-28 1999-12-28 A fixed type ventilator KR100321573B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101447658B1 (en) * 2013-03-18 2014-10-08 이행건 No Power Fixed type Ventilator for Improving Ventilation Performance
KR20170143041A (en) * 2016-06-17 2017-12-29 박태업 Indoor ventilation device for using the air exhaust
KR20180033881A (en) * 2016-09-26 2018-04-04 한국전력공사 Apparatus for preventing spontaneous ignition
KR200486854Y1 (en) * 2017-09-08 2018-07-06 주식회사 두인텍엔지니어링 Natural ventilation system
KR20230138702A (en) * 2022-03-24 2023-10-05 박태업 Ventilation apparatus for building duct

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200456374Y1 (en) 2008-07-25 2011-10-27 강동원 a ventilating apparatus

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Publication number Priority date Publication date Assignee Title
JPS6144100Y2 (en) * 1980-10-13 1986-12-12
JPS6014433U (en) * 1983-07-07 1985-01-31 辻生　穂 pipe ventilation equipment
JPS60152732U (en) * 1984-03-23 1985-10-11 新日軽株式会社 Folded plate roof ventilation system
US4903445A (en) * 1989-01-09 1990-02-27 Mankowski John P Roof ridge ventilators

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101447658B1 (en) * 2013-03-18 2014-10-08 이행건 No Power Fixed type Ventilator for Improving Ventilation Performance
KR20170143041A (en) * 2016-06-17 2017-12-29 박태업 Indoor ventilation device for using the air exhaust
KR20180033881A (en) * 2016-09-26 2018-04-04 한국전력공사 Apparatus for preventing spontaneous ignition
KR200486854Y1 (en) * 2017-09-08 2018-07-06 주식회사 두인텍엔지니어링 Natural ventilation system
KR20230138702A (en) * 2022-03-24 2023-10-05 박태업 Ventilation apparatus for building duct
KR20230156287A (en) * 2022-03-24 2023-11-14 박태업 Ventilation apparatus for building duct

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