KR100711603B1 - Drainpipe manhole attached ventilating apparatus - Google Patents

Drainpipe manhole attached ventilating apparatus Download PDF

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Publication number
KR100711603B1
KR100711603B1 KR1020060083881A KR20060083881A KR100711603B1 KR 100711603 B1 KR100711603 B1 KR 100711603B1 KR 1020060083881 A KR1020060083881 A KR 1020060083881A KR 20060083881 A KR20060083881 A KR 20060083881A KR 100711603 B1 KR100711603 B1 KR 100711603B1
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South Korea
Prior art keywords
manhole
solar cell
fastening
battery
motor
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KR1020060083881A
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Korean (ko)
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문병권
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주식회사 도화종합기술공사
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/02Manhole shafts or other inspection chambers; Snow-filling openings; accessories
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/12Manhole shafts; Other inspection or access chambers; Accessories therefor
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/08Ventilation of sewers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/048Encapsulation of modules
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

본 발명은 환풍장치가 부착된 하수관 맨홀에 관한 것으로서, 특히 맨홀에 있어서; 상면 중앙부에 원형의 안착홈이 형성되고, 상기 안착홈 중앙부에 제 1체결홀이 형성되며, 상기 제 1체결홀의 외측에 복수의 제 2체결홀이 형성되는 맨홀 뚜껑과; 원형의 판 형태로 형성되고, 상면에 복수의 솔라셀이 장착되며, 저면 중앙부에 체결 볼트가 돌출 형성되어 상기 맨홀 뚜껑의 안착홈에 안착되어 체결 볼트가 제 1체결홀에 체결되는 솔라셀판과; 내부에 상기 솔라셀판의 솔라셀로부터 공급되는 전원을 충전하도록 배터리가 삽입되고, 상기 배터리에 충전된 전원에 의해 동작되며, 상기 맨홀 뚜껑의 제 2체결홀과 체결되도록 상단 외주연에 플랜지가 형성되는 모터; 및 상기 모터의 회전축에 볼트 결합되어 상기 모터의 회전에 따라 회전되는 회전 날개를 포함함으로써 상기와 같은 본 발명에 따르면 태양광을 통해 자가 발전으로 회전되어 맨홀 내부의 악취 및 가스를 하수관을 통해 배출되도록 하여 대기 오염 및 악취가 발생하는 것을 방지할 수 있다.The present invention relates to a sewer pipe manhole with a ventilator, in particular in the manhole; A manhole cover having a circular seating groove in a central upper surface, a first fastening hole formed in a center of the seating groove, and a plurality of second fastening holes formed outside the first fastening hole; A solar cell plate formed in a circular plate shape, having a plurality of solar cells mounted on an upper surface thereof, and fastening bolts protruding from the bottom center thereof to be seated in a seating groove of the manhole cover to fasten the fastening bolts to the first fastening holes; The battery is inserted to charge the power supplied from the cell of the solar cell plate therein, the battery is operated by the power charged in the battery, the flange is formed on the upper outer periphery to be engaged with the second fastening hole of the manhole cover motor; And a rotor blade coupled to the rotating shaft of the motor to be rotated according to the rotation of the motor, according to the present invention as described above so as to be self-powered by solar to discharge the odor and gas inside the manhole through the sewer pipe. Therefore, it is possible to prevent the generation of air pollution and odor.

맨홀, 뚜껑, 환풍, 환기, 태양광 Manhole, Lid, Vent, Ventilation, Solar

Description

환풍장치가 부착된 하수관 맨홀{Drainpipe manhole attached ventilating apparatus}Drainpipe manhole attached ventilating apparatus

도 1은 본 발명에 따른 환풍장치가 부착된 하수관 맨홀의 구성을 나타낸 분해 사시도,1 is an exploded perspective view showing the configuration of the sewer manhole with a ventilation device according to the invention,

도 2는 본 발명에 따른 환풍장치가 부착된 하수관 맨홀의 구성을 나타낸 측단면도.Figure 2 is a side cross-sectional view showing the configuration of the sewer pipe manhole attached to the ventilator according to the present invention.

<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

110 : 맨홀 뚜껑 120 : 솔라셀판110: manhole cover 120: solar panel

130 : 모터 140 : 회전 날개130: motor 140: rotary wing

본 발명은 환풍장치가 부착된 하수관 맨홀에 관한 것으로서, 상세하게는 태양광을 통해 자가 발전으로 회전되어 맨홀 내부의 악취 및 가스를 하수관을 통해 배출시키는 환풍장치가 부착된 하수관 맨홀에 관한 것이다.The present invention relates to a sewer pipe manhole with a ventilation device, and more particularly, to a sewer pipe manhole with a ventilation device that is rotated by self-generation through sunlight to discharge odors and gases inside the manhole through a sewer pipe.

일반적으로 맨홀은 지하에 설치된 각종 관로의 유지 및 보수를 위하여 사람이 출입할 수 있도록 한 시설을 가리키는 총칭이며 이러한 맨홀은 각종 하수나 생 활 및 공업용수를 공급하기 위한 수로 또는 각종 전기통신을 위한 관로의 중간에 일정한 간격으로 설치된다.In general, a manhole is a general term for a facility that allows people to enter and exit for maintenance and repair of various pipelines installed underground. Such a manhole is a channel for supplying various sewage, living and industrial water, or a pipeline for various telecommunications. It is installed at regular intervals in the middle of the.

이와 같은 맨홀은 작업자가 맨홀내부로 들어가서 작업을 할 수 있게 출입구가 형성된 맨홀 본체, 맨홀 본체 상부로 안착되는 맨홀 커버, 그리고 맨홀 커버에 안착되어 상기 출입구를 밀폐하며 동시에 지상으로 노출되는 맨홀 뚜껑으로 이루어진다.Such a manhole consists of a manhole body formed with an entrance, a manhole cover seated on top of the manhole body, and a manhole cover seated on the manhole cover to seal the entrance and exposed to the ground at the same time. .

한편, 종래 맨홀 뚜껑은 충분한 지지강성과 압축강도 확보 및 자체중량 확보를 위해 보통 주철재를 이용하여 제작되고 있다.On the other hand, the conventional manhole cover is usually manufactured using a cast iron to ensure sufficient support rigidity and compressive strength and to secure its own weight.

그러나, 이러한 맨홀 뚜껑은 내부 악취 및 가스가 배출되어 피해를 입히는 문제점이 있다.However, this manhole cover has a problem that the internal odor and gas is discharged to cause damage.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 태양광을 통해 자가 발전으로 회전되어 맨홀 내부의 악취 및 가스를 하수관을 통해 배출되도록 하여 대기 오염 및 악취가 발생하는 것을 방지하도록 하는 환풍장치가 부착된 하수관 맨홀을 제공하는데 그 목적이 있다.The present invention is to solve the problems as described above, the ventilator is installed to rotate the self-power generation through sunlight to discharge the odor and gas inside the manhole through the sewer pipe to prevent the occurrence of air pollution and odor Its purpose is to provide an old sewer manhole.

상기와 같은 목적을 달성하기 위한 본 발명의 특징은,Features of the present invention for achieving the above object,

맨홀에 있어서; 상면 중앙부에 원형의 안착홈이 형성되고, 상기 안착홈 중앙부에 제 1체결홀이 형성되며, 상기 제 1체결홀의 외측에 복수의 제 2체결홀이 형성되는 맨홀 뚜껑과; 원형의 판 형태로 형성되고, 상면에 복수의 솔라셀이 장착되며, 저면 중앙부에 체결 볼트가 돌출 형성되어 상기 맨홀 뚜껑의 안착홈에 안착되어 체결 볼트가 제 1체결홀에 체결되는 솔라셀판과; 내부에 상기 솔라셀판의 솔라셀로부터 공급되는 전원을 충전하도록 배터리가 삽입되고, 상기 배터리에 충전된 전원에 의해 동작되며, 상기 맨홀 뚜껑의 제 2체결홀과 체결되도록 상단 외주연에 플랜지가 형성되는 모터; 및 상기 모터의 회전축에 볼트 결합되어 상기 모터의 회전에 따라 회전되는 회전 날개를 포함하는 것을 특징으로 한다.In the manhole; A manhole cover having a circular seating groove in a central upper surface, a first fastening hole formed in a center of the seating groove, and a plurality of second fastening holes formed outside the first fastening hole; A solar cell plate formed in a circular plate shape, having a plurality of solar cells mounted on an upper surface thereof, and fastening bolts protruding from the bottom center thereof to be seated in a seating groove of the manhole cover to fasten the fastening bolts to the first fastening holes; The battery is inserted to charge the power supplied from the cell of the solar cell plate therein, the battery is operated by the power charged in the battery, the flange is formed on the upper outer periphery to be engaged with the second fastening hole of the manhole cover motor; And it is characterized in that it comprises a rotary blade which is bolted to the rotating shaft of the motor rotates in accordance with the rotation of the motor.

여기에서, 상기 솔라셀판은 상기 체결 볼트를 수직으로 관통하는 전선 관통홀이 형성되어 상기 솔라셀과 전기적으로 연결된 전선이 노출되어 상기 모터의 배터리와 전기적으로 연결된다.Here, the solar cell plate is formed with a wire through-hole penetrating the fastening bolt vertically to expose the wire electrically connected to the solar cell is electrically connected to the battery of the motor.

여기에서 또, 상기 솔라셀판은 외부로부터 상기 솔라셀을 보호하도록 전면에 실리콘 또는 에폭시가 도포된다.Here, the solar cell plate is coated with silicon or epoxy on the front surface to protect the solar cell from the outside.

이하, 본 발명에 따른 환풍장치가 부착된 하수관 맨홀의 구성을 첨부된 도면을 참조하여 상세하게 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, the configuration of the sewer pipe manhole with a ventilation apparatus according to the present invention will be described in detail as follows.

하기에서 본 발명을 설명함에 있어, 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명은 생략할 것이다. 그리고 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례 등에 따라 달라질 수 있다. 그러므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

도 1은 본 발명에 따른 환풍장치가 부착된 하수관 맨홀의 구성을 나타낸 분 해 사시도이고, 도 2는 본 발명에 따른 환풍장치가 부착된 하수관 맨홀의 구성을 나타낸 측단면도이다.Figure 1 is an exploded perspective view showing the configuration of the sewer pipe manhole with a ventilation device according to the present invention, Figure 2 is a side cross-sectional view showing the configuration of the sewer pipe manhole with a ventilation device according to the present invention.

도 1 및 도 2를 참조하면, 본 발명에 따른 환풍장치가 부착된 하수관 맨홀(100)은, 맨홀 뚜껑(110)과, 솔라셀판(120)과, 모터(130)와, 회전 날개(140)로 구성된다.1 and 2, the sewer pipe manhole 100 having the ventilation device according to the present invention includes a manhole cover 110, a solar cell plate 120, a motor 130, and a rotary vane 140. It consists of.

먼저, 맨홀 뚜껑(110)은 공지의 맨홀 뚜껑 형상이고, 상면 중앙부에 원형의 안착홈(111)이 형성되고, 안착홈(111) 중앙부에 제 1체결홀(113)이 형성되며, 제 1체결홀(113)의 외측에 복수의 제 2체결홀(115)이 형성된다.First, the manhole cover 110 is a known manhole cover shape, a circular seating groove 111 is formed in the center of the upper surface, the first fastening hole 113 is formed in the center of the seating groove 111, the first fastening A plurality of second fastening holes 115 are formed outside the hole 113.

그리고, 솔라셀판(120)은 원형의 판 형태로 형성되고, 상면에 복수의 솔라셀(121)이 장착되며, 저면 중앙부에 체결 볼트(123)가 돌출 형성되어 맨홀 뚜껑(110)의 안착홈(111)에 안착되어 체결 볼트(123)가 제 1체결홀(113)에 체결된다. 여기에서, 솔라셀판(120)은 체결 볼트(123)를 수직으로 관통하는 전선 관통홀(125)이 형성되어 솔라셀(121)과 전기적으로 연결된 전선(127)이 노출되어 하기에서 설명할 모터(130)의 배터리(131)와 전기적으로 연결된다. 여기에서 또한, 솔라셀판(120)은 외부로부터 솔라셀(121)을 보호하도록 전면에 실리콘층 또는 에폭시층(129)이 도포된다.In addition, the solar cell plate 120 is formed in a circular plate shape, and a plurality of solar cells 121 are mounted on an upper surface thereof, and a fastening bolt 123 is protruded from a central portion of a bottom surface thereof, thereby allowing a seating groove of the manhole cover 110 to be formed. The fastening bolt 123 is fastened to the first fastening hole 113 by being seated at 111. Here, the solar cell plate 120 is formed with a wire through-hole 125 penetrating the fastening bolt 123 vertically to expose the wire 127 electrically connected to the solar cell 121 to the motor ( It is electrically connected to the battery 131 of 130. Here, the solar cell plate 120 is coated with a silicon layer or an epoxy layer 129 on the front surface to protect the cell 121 from the outside.

또한, 모터(130)는 내부에 솔라셀판(120)의 솔라셀(121)로부터 공급되는 전원을 충전하도록 배터리(131)가 삽입되고, 배터리(131)에 충전된 전원에 의해 동작되며, 맨홀 뚜껑(110)의 제 2체결홀(115)과 볼트에 의해 체결되도록 상단 외주연에 플랜지(133)가 형성된다. 여기에서, 모터(130) 내부에는 배터리(131)를 충전시키는 충방전 회로(미도시)가 포함되는 데, 이러한 충방전 회로의 구성은 공지된 기술로 그 설명은 생략한다.In addition, the motor 130 is inserted into the battery 131 to charge the power supplied from the solar cell 121 of the solar cell plate 120 therein, and is operated by the power charged in the battery 131, the manhole cover A flange 133 is formed at the outer circumference of the upper end so that the second fastening hole 115 of the 110 is fastened by the bolt. Here, a charge / discharge circuit (not shown) for charging the battery 131 is included in the motor 130. The configuration of such a charge / discharge circuit is a well-known technique and description thereof will be omitted.

또, 회전 날개(140)는 모터(130)의 회전축(135)에 볼트 결합되어 모터(130)의 회전에 따라 회전된다.In addition, the rotary blade 140 is bolted to the rotary shaft 135 of the motor 130 is rotated in accordance with the rotation of the motor 130.

이하, 본 발명에 따른 환풍장치가 부착된 하수관 맨홀의 설치 과정 및 작용을 첨부된 도면을 참조하여 상세하게 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings the installation process and the action of the sewer pipe manhole with a ventilation apparatus according to the present invention will be described in detail as follows.

먼저, 맨홀 뚜껑(110)의 안착홈(111)에 형성된 제 1체결홀(113)에 솔라셀판(120)의 체결 볼트(123)를 삽입한 후 너트를 체결하여 솔라셀판(120)을 안착홈(111)에 안착 고정시킨다.First, the fastening bolt 123 of the solar cell plate 120 is inserted into the first fastening hole 113 formed in the mounting groove 111 of the manhole cover 110, and then the nut is fastened to seat the solar cell plate 120. It is fixed to (111).

그리고, 솔라셀판(120)의 체결 볼트(123)를 통해 배출된 전선(127)을 모터(130)의 배터리(131)와 연결시키고, 모터(130)의 플랜지(133)를 맨홀 뚜껑(110)의 제 2체결 볼트(123)에 볼트를 이용하여 결합시킨다.The wire 127 discharged through the fastening bolt 123 of the solar cell plate 120 is connected to the battery 131 of the motor 130, and the flange 133 of the motor 130 is connected to the manhole cover 110. It is coupled to the second fastening bolt 123 by using a bolt.

그런 다음, 모터(130)의 회전축에 회전 날개(140)를 볼트 결합시킨 후 너트를 체결하여 조립을 완료하고, 맨홀 뚜껑(110)을 맨홀(100)의 맨홀 커버(101)에 안착시킨다.Then, the rotary blade 140 is bolted to the rotation shaft of the motor 130, the nut is fastened to complete the assembly, and the manhole cover 110 is seated on the manhole cover 101 of the manhole 100.

이러한 상태에서 태양광에 의해 솔라셀판(120)의 솔라셀(121)이 모터(130)의 배터리(131)를 충전시키고, 배터리(131)에 충전된 전원이 모터(130)로 인가된다.In this state, the solar cell 121 of the solar cell plate 120 charges the battery 131 of the motor 130 by the sunlight, and the power charged in the battery 131 is applied to the motor 130.

그러면, 모터(130)는 배터리(131)로부터 공급되는 전원에 의해 회전축(135)이 회전되어 회전축(135)과 연결된 회전 날개(140)가 회전을 하게 된다.Then, the motor 130 is rotated by the rotary shaft 135 by the power supplied from the battery 131, the rotary blade 140 connected to the rotary shaft 135 is rotated.

그리하여, 회전 날개가 회전하면 맨홀 내부의 악취 및 가스가 하수관을 통해 배출되어 맨홀에 악취 및 가스가 제거된다.Thus, when the rotor blade rotates, the odor and gas inside the manhole are discharged through the sewer pipe to remove the odor and gas in the manhole.

상기와 같이 구성되는 본 발명인 환풍장치가 부착된 하수관 맨홀에 따르면, 태양광을 통해 자가 발전으로 회전되어 맨홀 내부의 악취 및 가스를 하수관을 통해 배출되도록 하여 대기 오염 및 악취가 발생하는 것을 방지할 수 있는 이점이 있다.According to the sewer pipe manhole of the present invention with a ventilation device configured as described above, it can be rotated by self-generation through sunlight to discharge the odor and gas inside the manhole through the sewer pipe to prevent the occurrence of air pollution and odor. There is an advantage to that.

본 발명은 다양하게 변형될 수 있고 여러 가지 형태를 취할 수 있으며 상기 발명의 상세한 설명에서는 그에 따른 특별한 실시 예에 대해서만 기술하였다. 하지만 본 발명은 상세한 설명에서 언급되는 특별한 형태로 한정되는 것이 아닌 것으로 이해되어야 하며, 오히려 첨부된 청구범위에 의해 정의되는 본 발명의 정신과 범위 내에 있는 모든 변형물과 균등물 및 대체물을 포함하는 것으로 이해되어야 한다.As those skilled in the art would realize, the described embodiments may be modified in various ways, all without departing from the spirit or scope of the present invention. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. Should be.

Claims (3)

삭제delete 삭제delete 상면 중앙부에 원형의 안착홈이 형성되고, 상기 안착홈 중앙부에 제 1체결홀이 형성되며, 상기 제 1체결홀의 외측에 복수의 제 2체결홀이 형성되는 맨홀 뚜껑과; 원형의 판 형태로 형성되고, 상면에 복수의 솔라셀이 장착되며, 저면 중앙부에 체결 볼트가 돌출 형성되어 상기 맨홀 뚜껑의 안착홈에 안착되어 체결 볼트가 제 1체결홀에 체결되고, 상기 체결 볼트를 수직으로 관통하는 전선 관통홀이 형성되어 상기 솔라셀과 전기적으로 연결된 전선이 노출되는 솔라셀판과; 내부에 상기 솔라셀판의 솔라셀로부터 공급되는 전원을 충전하도록 배터리가 삽입되고, 상기 배터리에 충전된 전원에 의해 동작되며, 상기 맨홀 뚜껑의 제 2체결홀과 체결되도록 상단 외주연에 플랜지가 형성되는 모터; 및 상기 모터의 회전축에 볼트 결합되어 상기 모터의 회전에 따라 회전되는 회전 날개를 포함하는 환풍장치가 부착된 하수관 맨홀에 있어서,A manhole cover having a circular seating groove in a central upper surface, a first fastening hole formed in a center of the seating groove, and a plurality of second fastening holes formed outside the first fastening hole; It is formed in the shape of a circular plate, a plurality of solar cells are mounted on the upper surface, a fastening bolt is formed protruding in the bottom center portion is seated in the seating groove of the manhole cover, the fastening bolt is fastened to the first fastening hole, the fastening bolt A solar cell plate through which a wire through hole penetrating vertically is formed to expose a wire electrically connected to the solar cell; The battery is inserted to charge the power supplied from the cell of the solar cell plate therein, the battery is operated by the power charged in the battery, the flange is formed on the upper outer periphery to be engaged with the second fastening hole of the manhole cover motor; And in the sewer pipe manhole with a ventilation device comprising a rotary blade is bolted to the rotating shaft of the motor rotates in accordance with the rotation of the motor, 상기 솔라셀판은,The solar cell plate, 외부로부터 상기 솔라셀을 보호하도록 전면에 실리콘층 또는 에폭시층이 도포되는 것을 특징으로 하는 환풍장치가 부착된 하수관 맨홀.A sewer pipe manhole with a ventilator, wherein a silicon layer or an epoxy layer is applied to the front surface to protect the solar cell from the outside.
KR1020060083881A 2006-08-31 2006-08-31 Drainpipe manhole attached ventilating apparatus KR100711603B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102024305A (en) * 2010-09-15 2011-04-20 季露斌 Safety solar LED automatic alarming and hinting device manhole cover
KR101403561B1 (en) * 2014-02-27 2014-06-27 주식회사바셈 Eco-friendly ventilation equipment for manhole odor removal
KR20200091149A (en) 2019-01-22 2020-07-30 주식회사 탑시스템 Ventilation Device and Driving Method Thereof
KR20200127414A (en) 2019-05-02 2020-11-11 (주)위즈아이오티 IOT-based system for managing ventilation with harmful gas alarm and warning function in closed workplace

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0531954A (en) * 1991-07-31 1993-02-09 Japan Servo Co Ltd Apparatus for driving transfer drum laser beam printer
JPH0587902A (en) * 1991-09-27 1993-04-09 Susumu Sakuma Antenna for detection of direction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0531954A (en) * 1991-07-31 1993-02-09 Japan Servo Co Ltd Apparatus for driving transfer drum laser beam printer
JPH0587902A (en) * 1991-09-27 1993-04-09 Susumu Sakuma Antenna for detection of direction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102024305A (en) * 2010-09-15 2011-04-20 季露斌 Safety solar LED automatic alarming and hinting device manhole cover
KR101403561B1 (en) * 2014-02-27 2014-06-27 주식회사바셈 Eco-friendly ventilation equipment for manhole odor removal
KR20200091149A (en) 2019-01-22 2020-07-30 주식회사 탑시스템 Ventilation Device and Driving Method Thereof
KR20200127414A (en) 2019-05-02 2020-11-11 (주)위즈아이오티 IOT-based system for managing ventilation with harmful gas alarm and warning function in closed workplace

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