KR20220144083A - safety opening and shutting apparatus of manhole cover - Google Patents

safety opening and shutting apparatus of manhole cover Download PDF

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KR20220144083A
KR20220144083A KR1020210050310A KR20210050310A KR20220144083A KR 20220144083 A KR20220144083 A KR 20220144083A KR 1020210050310 A KR1020210050310 A KR 1020210050310A KR 20210050310 A KR20210050310 A KR 20210050310A KR 20220144083 A KR20220144083 A KR 20220144083A
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South Korea
Prior art keywords
hydraulic
housing
manhole cover
hole
shaft
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KR1020210050310A
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Korean (ko)
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KR102466730B1 (en
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장종복
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장종복
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1463—Hinged connection of cover to frame
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/06—Devices for limiting the opening movement of hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/104—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with cam-and-slide transmission between driving shaft and piston within the closer housing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/21—Brakes
    • E05Y2201/212—Buffers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/60—Application of doors, windows, wings or fittings thereof for other use
    • E05Y2900/612—Application of doors, windows, wings or fittings thereof for other use for manhole covers
    • E05Y2999/00—

Abstract

The present invention relates to a safety opening and closing apparatus for a manhole cover, which comprises: a main housing (110) of which one end is coupled with a hydraulic circuit coupler (111), and in which a coupling protrusion unit (115) protrudes inwards and a hydraulic passage (112) is formed such that the central portion and the edge may communicate with each other; a hydraulic housing (120) which is installed in the main housing (110), of which one end is inserted into the coupling protrusion unit (115) to fill a hydraulic oil therein, and the other end is coupled to a guide coupler (123) to seal the hydraulic oil filled therein, and in which a hydraulic hole (121) is perforated on the outer circumferential surface to form a hydraulic passage (122) to allow the inside thereof to communicate with the hydraulic passage (122); an operating piston (130) which is formed on the inside of the hydraulic housing (120), and has a check valve (131) and a reverse check valve (132), and in which a piston rod (133) penetrates a guide coupler (123); and an operating shaft (140) which is connected to the piston rod (133) of the operating piston (130) to be linked, and converts the rotational movement into a linear movement. Therefore, the present invention can be automatically and slowly closed by the load of the manhole cover to prevent the occurrence of safety accidents. Furthermore, the opening and closing of the manhole cover can be smoothly induced, thereby being artificially and conveniently opened and closed.

Description

맨홀용 덮개의 안전개폐 장치{safety opening and shutting apparatus of manhole cover} Safety opening and shutting apparatus of manhole cover

본 발명은 맨홀용 덮개의 안전개폐 장치에 관한 것으로, 상세하게는 산업현장이나 선박 등에 사용되는 고 중량의 맨홀 덮개를 원활하게 열림과 동시에 안전하게 닫힐 수 있도록 하는 맨홀용 덮개의 안전개폐 장치에 관한 것이다.The present invention relates to a safety opening/closing device for a manhole cover, and more particularly, to a safety opening/closing device for a manhole cover that allows a high-weight manhole cover used in industrial sites or ships to be smoothly opened and safely closed at the same time. .

일반적으로 산업 플랜트나 선박의 맨홀은 통신, 이동, 점검 등 다양한 작업을 위하여 작업자가 출입할 수 있도록 하거나, 내부의 환풍을 위한 통풍수단으로 활용할 수 있도록 된 구멍으로 그 크기에 따라 수십 개에서 수백 개까지 형성되어 있는 것인바, 작업이 완료되기 전까지 입구가 개방되어 있으며, 여기에 보행자 및 작업자가 빠지지 않도록 맨홀에 통상 철재로 된 덮개를 구비하였다.In general, manholes in industrial plants or ships are holes that allow workers to enter and exit for various tasks such as communication, movement, and inspection, or are used as a means of ventilation for internal ventilation. The entrance is open until the work is completed, and the manhole is usually provided with a steel cover so that pedestrians and workers do not fall out.

이러한 맨홀의 덮개는 맨홀의 특성상 수직으로 작동하게 되는 데 사용자가 수작업으로 맨홀 덮개를 열고 통과한 다음 안전사고를 방지하기 위하여 필연적으로 맨홀 덮개를 닫아야 한다.The manhole cover is operated vertically due to the nature of the manhole, and the user must manually close the manhole cover to prevent a safety accident after manually opening and passing the manhole cover.

그러나 이러한 맨홀 덮개는 작업자가 내려가는 경우, 덮개의 고 하중으로 작업자의 마지막 닫히는 순간 안전모 등과 부딪치는 경우가 자주 발생할 뿐만 아니라 이로 인하여 심각한 부상을 야기하는 문제점이 수시로 발생할 수 있어, 맨홀 덮개를 안전하고 안정적으로 개폐할 수 있는 맨홀의 안전장치 개발이 지속적으로 요구되어 왔다However, when the operator goes down, the manhole cover often collides with a safety helmet at the moment the operator's last closing due to the high load of the cover, and this can cause serious injuries from time to time. There has been a continuous demand for the development of safety devices for manholes that can be opened and closed with

종래의 기술로는 스프링과 자석 등을 이용하여 맨홀에 의한 안전사고를 미연에 방지하는 공개특허 제10-2013-0033758호 등이 있으나 고 하중의 맨홀 덮개에 의한 안전사고 방지에는 한계가 있다.In the prior art, there is, for example, Patent Publication No. 10-2013-0033758, which prevents safety accidents caused by manholes in advance using springs and magnets, but there is a limit in preventing safety accidents due to a high-load manhole cover.

따라서 본 발명의 주 목적은 맨홀 덮개의 하중에 의해 자동으로 서서히 닫히도록 하여 안전사고의 발생을 방지하도록 하는 맨홀용 덮개의 안전개폐 장치를 제공하는 데 있다.Therefore, the main object of the present invention is to provide a safety opening and closing device for a manhole cover to prevent the occurrence of a safety accident by automatically closing the cover slowly by the load of the manhole cover.

본 발명의 다른 목적은 맨홀 덮개의 개폐를 원활하게 유도하여 인위적으로 편리하게 열고 닫을 수 있도록 하는 맨홀용 덮개의 안전개폐 장치를 제공하는 데 있다.Another object of the present invention is to provide a safety opening and closing device for a manhole cover that can be opened and closed artificially conveniently by inducing the opening and closing of the manhole cover smoothly.

상기한 목적을 달성하기 위하여 본 발명의 맨홀용 덮개의 안전개폐 장치는 일단에 유압회로결합구를 결합하되 결합돌출부를 내측으로 돌출시키고 중심부와 가장자리를 연통시키는 유압통로를 형성한 메인하우징과, 메인하우징의 내부에 설치하되 결합돌출부에 일단을 끼우고 내부에 유압오일을 충진하며 타단에 가이드결합구를 결합하여 내부에 충진하는 유압오일을 밀폐시키고 외주연에 유압통로를 형성하며 유압통로와 내부를 연통시키는 유압구멍을 천공한 유압하우징과, 유압하우징의 내부에 형성하되 체크밸브와 역체크밸브를 구비하고 피스톤로드를 가이드결합구에 관통시킨 작동피스톤, 및 작동피스톤의 피스톤로드에 연결하여 연동하도록 하고 회전운동을 직선 운동으로 전환하는 작동샤프트로 구성하되, 작동샤프트의 외주연에 작동나사를 형성하고 일단에 체결홈을 하며 체결홈에 피스톤로드의 걸림편을 삽입하고 체결홈에 환형의 구속편을 나사 결합하여, 피스톤로드를 작동샤프트의 회전운동에 공회전하도록 하고 직선 운동에 연동하도록 함과 동시에 작동샤프트의 타단에는 키를 길이 방향으로 길게 형성하되, 메인하우징의 타단에 작동나사공을 천공한 작동가이드구를 결합하고 작동나사공에 작동샤프트의 작동나사를 관통결합하여 구성함을 그 기술적 구상상 기본 특징으로 한다.In order to achieve the above object, the safety opening and closing device of the cover for a manhole of the present invention includes a main housing in which a hydraulic circuit coupler is coupled to one end, but the coupling protrusion protrudes inward and a hydraulic passage is formed to communicate the center and the edge, and the main Installed inside the housing, insert one end of the coupling protrusion, fill the inside with hydraulic oil, combine the guide coupling hole with the other end to seal the hydraulic oil filled inside, form a hydraulic path on the outer periphery, and connect the hydraulic path and the inside. A hydraulic housing with a perforated hydraulic hole for communication, a hydraulic housing formed inside the hydraulic housing, provided with a check valve and a reverse check valve, and a piston rod through the guide coupling hole, and a piston rod of the operation piston to interlock and an actuating shaft that converts rotational motion into linear motion, an actuating screw is formed on the outer periphery of the actuating shaft, a fastening groove is made at one end, a locking piece of the piston rod is inserted into the fastening groove, and an annular constraining piece is inserted into the fastening groove. is screwed to make the piston rod idle in the rotational motion of the operating shaft and interlock with the linear motion, and at the same time form a long key at the other end of the operating shaft in the longitudinal direction. The basic feature in terms of its technical concept is that it is composed by combining the actuating guide sphere and penetrating the actuating screw of the actuating shaft to the actuating screw hole.

따라서 본 발명의 맨홀용 덮개의 안전개폐 장치는 맨홀의 덮개를 개폐할 때 지지바에 연결시킨 작동샤프트가 회전 또는 역회전함과 동시에 작동피스톤도 연동하여 후퇴하거나 전진하므로 유압하우징의 내부에 유압이 발생하고 이로 인하여 맨홀 상부에서 덮개를 놓아도 유압이 압축되면서 서서히 흐르게 되므로 덮개도 서서히 안전하게 닫히도록 유도할 뿐만 아니라 인위적으로 빠르게 덮개를 열거나 닫으면, 유압하우징 내부의 유압이 일정이상으로 상승하여 체크밸브 또는 역체크밸브를 오픈시키므로 빠르고 원활하게 맨홀의 덮개를 개폐할 수 있도록 유도하므로 고 중량의 맨홀 덮개를 원활하게 열림과 동시에 안전하게 닫힐 수 있도록 하는 효과가 있다. Therefore, in the safety opening and closing device of the manhole cover of the present invention, when the manhole cover is opened and closed, the operating shaft connected to the support bar rotates or reverses, and the operating piston also retracts or advances in conjunction, so that hydraulic pressure is generated inside the hydraulic housing and For this reason, even if the cover is placed on the top of the manhole, the hydraulic pressure is compressed and flows slowly, so it not only induces the cover to close slowly and safely, but also opens or closes the cover artificially quickly, the hydraulic pressure inside the hydraulic housing rises above a certain level, causing a check valve or reverse check By opening the valve, it induces the manhole cover to be opened and closed quickly and smoothly, so that the heavy manhole cover can be opened smoothly and safely closed at the same time.

도 1 은 본 발명에 따른 맨홀용 덮개의 안전개폐 장치의 설치 상태를 나타낸 사시도.
도 2 는 본 발명에 따른 맨홀용 덮개의 안전개폐 장치의 열린 상태를 나타낸 단면도.
도 3 은 본 발명에 따른 맨홀용 덮개의 안전개폐 장치의 닫힌 상태를 나타낸 단면도.
도 4 는 본 발명에 따른 맨홀용 덮개의 안전개폐 장치의 다른 실시 예를 나타낸 단면도.
1 is a perspective view showing the installation state of the safety opening and closing device of the cover for a manhole according to the present invention.
Figure 2 is a cross-sectional view showing an open state of the safety opening and closing device for the manhole cover according to the present invention.
Figure 3 is a cross-sectional view showing a closed state of the safety opening and closing device for the manhole cover according to the present invention.
Figure 4 is a cross-sectional view showing another embodiment of the safety opening and closing device for the manhole cover according to the present invention.

도 1 내지 도 4 에 나타낸 바와 같이, 본 발명의 맨홀용 덮개의 안전개폐 장치(100)는 원통형으로 형성하고 일단에 유압회로결합구(111)를 결합하되 결합돌출부(115)를 내측으로 돌출시키고 중심부와 가장자리를 연통시키는 유압 통로(112)를 형성한 메인하우징(110)과, 상기 메인하우징(110)의 내부에 설치하되 결합돌출부(115)에 일단을 끼우고 내부에 유압오일을 충진하며 타단에 가이드결합구(123)를 결합하여 내부에 충진하는 유압오일을 밀폐시키고 외주연에 유압통로(122)를 형성하며 유압통로(122)와 내부를 연통시키는 유압구멍(121)을 천공한 유압하우징(120)과, 상기 유압하우징(120)의 내부에 형성하되 체크밸브(131)와 역체크밸브(132)를 구비하고 피스톤로드(133)를 가이드결합구(123)에 관통시킨 작동피스톤(130)과, 상기 작동피스톤(130)의 피스톤로드(133)에 연결하여 연동하도록 하고 회전운동을 직선 운동으로 전환하는 작동샤프트(140), 및 상기 메인하우징(110)의 유압회로결합구(111)에 일측 지지바(11)를 결합하여 공회전시키고 타측 지지바(11)를 작동샤프트(140)에 연결하여 연동하도록 하는 덮개(10)로 구성한다.1 to 4, the safety opening and shutting device 100 for the manhole cover of the present invention is formed in a cylindrical shape and coupled to the hydraulic circuit coupling 111 at one end, but the coupling protrusion 115 protrudes inward, and The main housing 110, which forms a hydraulic passage 112 connecting the center and the edge, is installed inside the main housing 110, but one end is inserted into the coupling protrusion 115, and hydraulic oil is filled inside, and the other end is installed in the main housing 110. A hydraulic housing in which the hydraulic oil filled inside is sealed by coupling the guide coupling hole 123 in the 120 and an operating piston 130 formed inside the hydraulic housing 120 but provided with a check valve 131 and a reverse check valve 132 and having a piston rod 133 penetrated through the guide coupling hole 123 . ), an operation shaft 140 that connects to the piston rod 133 of the operation piston 130 to interlock and converts a rotational motion into a linear motion, and a hydraulic circuit coupling port 111 of the main housing 110 ) It consists of a cover 10 that connects the one side support bar 11 to the idling and connects the other side support bar 11 to the operation shaft 140 to interlock.

상기 메인하우징(110)은 원통형으로 형성하여 맨홀(1)의 개구부 가장자리에 부착하여 고정시키되 일단에 유압회로결합구(111)를 나사 결합하여 메인하우징(110)의 일측을 밀폐시킨다.The main housing 110 is formed in a cylindrical shape and is attached to the edge of the opening of the manhole 1 to be fixed, and a hydraulic circuit coupling hole 111 is screwed to one end to seal one side of the main housing 110 .

여기서 유압회로결합구(111)에는 외부면 중앙에 축공(114)을 형성하고 내측으로 결합돌출부(115)를 돌출시키되 결합돌출부(115)와 결합돌출부(115)로 형성하는 턱 부를 연통시키는 유압 통로(112)를 형성하고 유압통로(112)에 유압을 조절하는 조절볼트(113)를 구비한다 .Here, in the hydraulic circuit coupling port 111, a shaft hole 114 is formed in the center of the outer surface, and the coupling protrusion 115 is protruded to the inside. Forming (112) and having a control bolt (113) for adjusting the hydraulic pressure in the hydraulic passage (112).

따라서 덮개(10)의 하중에 따라 조절볼트(113)로 유압으로 조절하여 맨홀(1)덮개(10)의 닫힘 속도를 안전하고 안정적으로 조절할 수 있도록 한다.Therefore, the closing speed of the manhole (1) cover 10 can be safely and stably adjusted by hydraulically adjusting with the adjusting bolt 113 according to the load of the cover 10 .

상기 유압하우징(120)은 원통형으로 형성하되, 메인하우징(110)의 내부에서 유압회로결합구(111)의 결합돌출부(115)에 일단을 끼워 밀폐시키고 유압하우징(120)의 외주연과 메인하우징(110)의 내주연 사이에 유압통로(122)를 형성시키며 유압통로(122)와 내부를 연통시키는 유압구멍(121)을 천공하되 유압회로결합구(111)의 유압통로(112) 중심부와 턱부 사이를 유압하우징(120)을 위치시켜 유압통로(112) 중심부와 턱부 분리하여 구획하도록 함이 바람직하다.The hydraulic housing 120 is formed in a cylindrical shape, but one end is fitted to the coupling protrusion 115 of the hydraulic circuit coupling hole 111 inside the main housing 110 and sealed, and the outer periphery of the hydraulic housing 120 and the main housing A hydraulic passage 122 is formed between the inner periphery of 110 and a hydraulic hole 121 for communicating the hydraulic passage 122 and the inside is drilled, but the hydraulic passage 112 of the hydraulic circuit coupler 111 is the center and the chin It is preferable to position the hydraulic housing 120 between the hydraulic passages 112 to separate the central part and the chin part.

나아가, 유압하우징(130)의 타단에는 가이드결합구(123)에 형성한 결합돌출부(125)를 형성하여 끼워 밀폐시키고 내부에 충진한 유압오일을 누유를 방지하도록 하되 가이드결합구(123)를 메인하우징(110)에 나사 결합함과 동시에 유압하우징(120)을 밀폐하도록 함이 이상적이다.Further, the other end of the hydraulic housing 130 is formed with a coupling protrusion 125 formed in the guide coupling hole 123 to be fitted and sealed, and to prevent leakage of hydraulic oil filled therein, but the guide coupling hole 123 is the main It is ideal to seal the hydraulic housing 120 at the same time as screwing to the housing 110 .

여기서 가이드결합구(123)의 중앙에는 센터공(124)을 천공하여 후술하는 피스톤로드(133)를 관통시키도록 한다.Here, a center hole 124 is drilled in the center of the guide coupler 123 so that the piston rod 133, which will be described later, passes through.

상기 작동피스톤(130)은 유압하우징(120)의 내부에 형성하되 피스톤로드(133)를 가이드결합구(123)의 센터공(124)에 관통시키고 피스톤로드(133)의 단부에 환형의 걸림편(134)을 스냅링이나 나사 등으로 결합하여 형성한다.The operation piston 130 is formed inside the hydraulic housing 120, but passes the piston rod 133 through the center hole 124 of the guide coupling hole 123, and an annular engaging piece at the end of the piston rod 133. (134) is formed by coupling with a snap ring or a screw.

여기서 작동피스톤(130)에는 체크밸브(131)와 역체크밸브(132)를 형성하여 작동피스톤(130)의 동작에 따른 일정이상의 압력이 발생하면 오픈하여 유압을 감쇄시키도록 함이 바람직하다.Here, it is preferable that a check valve 131 and a reverse check valve 132 are formed in the operation piston 130 to open when a pressure greater than a certain level is generated according to the operation of the operation piston 130 to reduce the hydraulic pressure.

상기 작동샤프트(140)는 외주연에 작동나사(143)를 형성하고 일단에 체결홈(141)을 하되 체결홈(141)에 피스톤로드(133)의 걸림편(134)을 삽입하고 체결홈 (141)에 환형의 구속편(142)을 스냅링이나 나사 등으로 결합하여 걸림편(134)에 대응하도록 하므로, 피스톤로드(133)를 안정적으로 결합하여 외부로 빠져나오는 것으로 방지함과 동시에 피스톤로드(133)가 작동샤프트(140)의 회전 운동에 공회전하도록 하고 직선 운동에 연동하도록 함이 이상적이다.The actuating shaft 140 forms an actuating screw 143 on the outer periphery, and has a fastening groove 141 at one end, but inserts the engaging piece 134 of the piston rod 133 into the fastening groove 141, and inserts the fastening groove ( Since the annular constraining piece 142 is coupled to the 141 with a snap ring or screw to correspond to the locking piece 134, the piston rod 133 is stably coupled to prevent it from coming out, and at the same time, the piston rod ( It is ideal to allow the 133) to idle in the rotational motion of the actuating shaft 140 and to interlock with the linear motion.

나아가, 작동샤프트(140)의 타단에는 키(144)를 길이 방향으로 길게 형성하되, 메인하우징(140)의 타단에 작동나사공(146)을 천공한 작동가이드구(145)를 결합하고 작동나사공(146)에 작동샤프트(140)의 작동나사(133)를 관통시켜 결합하므로, 작동샤프트(140)의 회전 또는 역회전과 동시에 좌측 또는 우측으로 직선 운동하여 수평이동할 수 있도록 유도한다.Furthermore, the key 144 is formed long in the longitudinal direction at the other end of the actuating shaft 140, and the actuating guide sphere 145 in which the actuating screw hole 146 is drilled is coupled to the other end of the main housing 140 and operated Since the operation screw 133 of the operation shaft 140 is penetrated and coupled to the screw hole 146 , the operation shaft 140 is rotated or rotated in a straight line to the left or right at the same time as the rotation or reverse rotation to induce horizontal movement.

따라서 작동샤프트(140)의 직선 운동으로 작동피스톤(130)도 연동하여 직선 운동하므로 유압하우징(120) 내부에서 유압을 발생시켜 안전하고 안정적이며 서서히 맨홀(1)의 덮개(10)가 닫히도록 유도할 수 있다.Therefore, since the operating piston 130 is also linearly moved in conjunction with the linear motion of the operating shaft 140, hydraulic pressure is generated inside the hydraulic housing 120 to safely, stably, and gradually close the cover 10 of the manhole 1 can do.

여기서 작동샤프트(140)는 키(144)를 외부에 돌출시켜 연결부재(147)를 키 결합하되 연결부재(147)에 키홈(148)과 축공(149)을 동일선상에 형성하여 축공(149)에 덮개(10)의 지지바(11)를 결합하여 연동하도록 한다.Here, the operation shaft 140 protrudes the key 144 to the outside to key-couple the connection member 147, but the key groove 148 and the shaft hole 149 are formed on the same line in the connection member 147 to form the shaft hole 149. By coupling the support bar 11 of the cover 10 to the interlock.

도 3 에 나타낸 바와 같이, 본 발명의 맨홀용 안전개폐 장치(100)는 메인하우징(110a)을 유압하우징(120)과 일체로 형성하여 유압통로(112a)와 가이드결합구(123a)를 형성하고, 작동샤프트(140a)에 작동나사(143) 대용으로 작동캠(143a)을 형성함과 동시에 작동공(146a)을 형성한 작동가이드구(145a)를 작동나사공(146)을 형성한 작동가이드구(146) 대용으로 선택하여 적용할 수 있는 것이다.As shown in Fig. 3, the safety opening and closing device 100 for a manhole of the present invention forms a main housing 110a integrally with the hydraulic housing 120 to form a hydraulic passage 112a and a guide coupling hole 123a. , an actuating guide having an actuating cam 143a in place of the actuating screw 143 on the actuating shaft 140a and forming an actuating guide hole 145a with an actuating hole 146a at the same time as an actuating screw hole 146 It can be selected and applied as a substitute for the phrase 146 .

여기서 덮개(110)의 지지바(11)를 결합하는 볼트나 너트 등의 별도의 연결부재(147a)를 구비하여 메인하우징(110)의 양측에 용이하게 지지바(11)를 결합할 수 있도록 함이 바람직하다.Here, a separate connecting member 147a such as a bolt or a nut for coupling the support bar 11 of the cover 110 is provided so that the support bar 11 can be easily coupled to both sides of the main housing 110 . This is preferable.

이러한 본 발명의 작용을 설명하면 다음과 같다.The operation of the present invention will be described as follows.

먼저, 맨홀(1)의 덮개(10)를 열면 지지바(11)에 연결시킨 작동샤프트(140)가 회전함과 동시에 외향으로 이동하므로 작동샤프트(140)에 결합시킨 작동피스톤(130)도 외향으로 이동하여 후퇴한다.First, when the cover 10 of the manhole 1 is opened, the operation shaft 140 connected to the support bar 11 rotates and moves outward at the same time, so the operation piston 130 coupled to the operation shaft 140 also faces outward. move to and retreat

이때 인위적으로 빠르게 덮개(10)를 열면, 유압하우징(120) 내부의 유압이 상승하여 체크밸브(131)를 오픈시키므로 빠르고 원활하게 맨홀(1)의 덮개(10)를 열 수 있도록 유도한다.At this time, if the cover 10 is opened artificially quickly, the hydraulic pressure inside the hydraulic housing 120 rises to open the check valve 131, so that the cover 10 of the manhole 1 can be opened quickly and smoothly.

여기서 작업자 등이 맨홀(1)을 빠져나오거나 들어가 맨홀(1)의 덮개(10)를 닫으면, 지지바(11)에 연결시킨 작동샤프트(140)가 역회전함과 동시에 내향으로 이동하므로 작동샤프트(140)에 결합시킨 작동피스톤(130)도 내향으로 이동하여 전지하는 것으로, 여기서 맨홀 상부에서 덮개(10)를 놓아 덮개(10) 하중이 개폐장치(100)에 인가되더라도 유압이 압축되면서 서서히 흐르게 되므로 덮개(10)도 서서히 안전하게 닫힌다.Here, when a worker or the like exits or enters the manhole 1 and closes the cover 10 of the manhole 1, the operating shaft 140 connected to the support bar 11 rotates in reverse and simultaneously moves inward. The actuating piston 130 coupled to 140 also moves inward to charge the battery, where the cover 10 is placed on the upper part of the manhole so that even if the cover 10 load is applied to the opening/closing device 100, the hydraulic pressure is compressed and flows slowly. The cover 10 also closes slowly and safely.

이때 인위적으로 빠르게 덮개(10)를 닫으면, 유압하우징(120) 내부의 유압이 상승하여 역체크밸브(132)를 오픈시키므로 빠르고 원활하게 맨홀(1)의 덮개(10)를 닫을수 있도록 유도하는 것이다.At this time, when the cover 10 is artificially and quickly closed, the hydraulic pressure inside the hydraulic housing 120 rises to open the reverse check valve 132, so that the cover 10 of the manhole 1 can be quickly and smoothly closed. .

이상의 설명에서 본 발명은 특정의 실시 예와 관련하여 도시 및 설명하였지만, 청구범위에 의해 나타난 발명의 사상 및 영역으로부터 벗어나지 않는 한도 내에서 다양한 개조 및 변화가 가능하다는 것을 이 기술분야에서 통상의 지식을 가진 자라면 누구나 쉽게 알 수 있을 것이다. Although the present invention has been shown and described in relation to specific embodiments in the above description, it is common knowledge in the art that various modifications and changes are possible without departing from the spirit and scope of the invention as defined by the claims. Anyone who has it will know it easily.

1 : 맨홀 10 : 덮개
11 : 지지바 12 : 키
100 : 개폐장치 110, 110a : 메인하우징
111 : 유압회로결합구 112, 112a : 유압통로
113 : 조절볼트 114, 114a : 축공
115 : 결합돌출부 120 : 유압하우징
121 : 유압구멍 122 : 유압통로
123,123a : 가이드결합구 124 : 센터공
125 : 결합돌출부 130 : 작동피스톤
131 : 체크밸브 132 : 역체크밸브
133 : 피스톤로드 134 : 걸림편
140, 140a : 작동샤프트 141 : 체결홈
142 : 구속편 143 : 작동나사
143a : 작동캠 144 : 키
145, 145a : 작동가이드구 146 : 작동나사공
146a : 작동공 147, 147a : 연결부재
148 : 키홈 149 : 축공 1: manhole 10: cover
11: support bar 12: key
100: switchgear 110, 110a: main housing
111: hydraulic circuit coupling 112, 112a: hydraulic passage
113: adjustment bolt 114, 114a: shaft hole
115: coupling protrusion 120: hydraulic housing
121: hydraulic hole 122: hydraulic passage
123,123a: guide coupling hole 124: center hole
125: coupling protrusion 130: working piston
131: check valve 132: reverse check valve
133: piston rod 134: jamming piece
140, 140a: operation shaft 141: fastening groove
142: restraint piece 143: actuation screw
143a: operation cam 144: key
145, 145a: operation guide sphere 146: operation screw hole
146a: working hole 147, 147a: connecting member
148: keyway 149: shaft hole

Claims (8)

원통형으로 형성하고 일단에 유압회로결합구(111)를 결합하되 결합돌출부(115)를 내측으로 돌출시키고 중심부와 가장자리를 연통시키는 유압 통로(112)를 형성한 메인하우징(110)과,
상기 메인하우징(110)의 내부에 설치하되 결합돌출부(115)에 일단을 끼우고 내부에 유압오일을 충진하며 타단에 가이드결합구(123)를 결합하여 내부에 충진하는 유압오일을 밀폐시키고 외주연에 유압통로(122)를 형성하며 유압통로(122)와 내부를 연통시키는 유압구멍(121)을 천공한 유압하우징(120)과,
상기 유압하우징(120)의 내부에 형성하되 체크밸브(131)와 역체크밸브(132)를 구비하고 피스톤로드(133)를 가이드결합구(123)에 관통시킨 작동피스톤(130)와,
상기 작동피스톤(130)의 피스톤로드(133)에 연결하여 연동하도록 하고 회전운동을 직선운동으로 전환시키는 작동샤프트(140), 및
상기 메인하우징(110)의 유압회로결합구(111)에 일측 지지바(11)를 결합하여 공회전시키고 타측 지지바(11)를 작동샤프트(140)에 연결하여 연동하도록 하는 덮개(10)로 구성한 것을 특징으로 하는 맨홀용 덮개의 안전개폐 장치.
The main housing 110 formed in a cylindrical shape and coupled to the hydraulic circuit coupler 111 at one end, but the coupling protrusion 115 protrudes inward and the hydraulic passage 112 is formed to communicate the center and the edge;
Installed inside the main housing 110, but insert one end into the coupling protrusion 115, fill the inside with hydraulic oil, combine the guide coupling hole 123 with the other end to seal the hydraulic oil filled inside, and the outer periphery A hydraulic housing 120 in which a hydraulic passage 122 is formed and a hydraulic hole 121 for communicating the hydraulic passage 122 and the inside is drilled;
An operating piston 130 formed inside the hydraulic housing 120 but provided with a check valve 131 and a reverse check valve 132 and having the piston rod 133 penetrated through the guide coupling hole 123,
The operating shaft 140 is connected to the piston rod 133 of the operating piston 130 to interlock and convert the rotational motion into a linear motion, and
One side of the support bar 11 is coupled to the hydraulic circuit coupling port 111 of the main housing 110 to idle, and the other side support bar 11 is connected to the operation shaft 140 to interlock with the cover 10. A safety opening and closing device for the manhole cover, characterized in that.
 제 1 항에 있어서,
상기 메인하우징(110)은 유압회로결합구(111)에 외부면 중앙에 축공(114)을 형성하고 결합돌출부(115)와 결합돌출부(115)로 형성하는 턱부를 연통시키는 유압 통로(112)를 형성하며 유압통로(112)에 유압을 조절하는 조절볼트(113)를 구비하여 구성한 것을 특징으로 하는 맨홀용 덮개의 안전개폐 장치.
The method of claim 1,
The main housing 110 forms a shaft hole 114 in the center of the outer surface of the hydraulic circuit coupling port 111 and a hydraulic passage 112 for communicating the jaw formed by the coupling protrusion 115 and the coupling protrusion 115. Safety opening and closing device for a manhole cover, characterized in that it is formed and configured with an adjustment bolt (113) for controlling the hydraulic pressure in the hydraulic passage (112).
 제 1 항에 있어서
상기 유압하우징(120)은 원통형으로 형성하고 유압회로결합구(111)의 유압통로(112) 중심부와 턱부 사이를 유압하우징(120)을 위치시켜 유압통로(112) 중심부와 턱부 분리하도록 하도록 구성한 것을 특징으로 하는 맨홀용 덮개의 안전개폐 장치.
2. The method of claim 1
The hydraulic housing 120 is formed in a cylindrical shape, and the hydraulic housing 120 is positioned between the center and the jaw of the hydraulic circuit 112 of the hydraulic circuit coupling 111 to separate the hydraulic passage 112 from the center of the jaw. A safety opening/closing device for the manhole cover.
 제 1 항에 있어서,
상기 작동피스톤(130)은 유압하우징(120)의 내부에 형성하되 피스톤로드(133)를 가이드결합구(123)에 관통시키고 피스톤로드(133)의 단부에 환형의 걸림편(134)을 결합하여 구성한 것을 특징으로 하는 맨홀용 덮개의 안전개폐 장치.
The method of claim 1,
The operating piston 130 is formed inside the hydraulic housing 120, but passes the piston rod 133 through the guide coupling hole 123, and combines the annular engaging piece 134 with the end of the piston rod 133. A safety opening/closing device for a manhole cover, characterized in that it is configured.
 제 1 항 또는 제 4 항에 있어서,
상기 작동샤프트(140)는 외주연에 작동나사(143)를 형성하고 일단에 체결홈(141)을 하며 체결홈(141)에 피스톤로드(133)의 걸림편(134)을 삽입하고 체결홈 (141)에 환형의 구속편(142)을 결합하여, 피스톤로드(133)를 작동샤프트(140)의 회전운동에 공회전하도록 하고 직선 운동에 연동하도록 구성한 것을 특징으로 하는 맨홀용 덮개의 안전개폐 장치.
5. The method of claim 1 or 4,
The actuating shaft 140 forms an actuating screw 143 on the outer periphery, has a fastening groove 141 at one end, inserts the engaging piece 134 of the piston rod 133 into the fastening groove 141, and inserts the fastening groove ( By coupling the annular constraint piece 142 to 141), the piston rod 133 idles with the rotational motion of the operating shaft 140 and is configured to interlock with the linear motion.
 제 5 항에 있어서,
상기 작동샤프트(140)의 타단에는 키(144)를 길이 방향으로 길게 형성하되, 메인하우징(140)의 타단에 작동나사공(146)을 천공한 작동가이드구(145)를 결합하고 작동나사공(146)에 작동샤프트(140)의 작동나사(133)를 관통결합하여 구성한 것을 특징으로 하는 맨홀용 덮개의 안전개폐 장치.
6. The method of claim 5,
At the other end of the actuating shaft 140, a key 144 is formed long in the longitudinal direction, and the actuating guide sphere 145 having an actuating screw hole 146 perforated is coupled to the other end of the main housing 140, and the actuating screw hole. A safety opening and closing device for a manhole cover, characterized in that configured by penetrating the operating screw 133 of the operating shaft 140 to the (146).
 제 1 항 또는 제 6 항에 있어서,
상기 작동샤프트(140)는 키(144)를 외부에 돌출시켜 연결부재(147)를 키 결합하되 연결부재(147)에 키홈(148)과 축공(149)을 동일선상에 형성하여 축공(149)에 덮개(10)의 지지바(11)를 결합하여 연동하도록 구성한 것을 특징으로 하는 맨홀용 덮개의 안전개폐 장치.
7. The method of claim 1 or 6,
The operation shaft 140 protrudes the key 144 to the outside to key-couple the connection member 147, but the key groove 148 and the shaft hole 149 are formed in the connection member 147 on the same line to form the shaft hole 149. A safety opening and closing device for a manhole cover, characterized in that it is configured to interlock by coupling the support bar 11 of the cover 10.
 제 1 항, 또는 제 6 항에 있어서,
상기 메인하우징(110)을 유압하우징(120)을 일체로 형성하는 메인하우징(110a)을 구비하여 유압통로(112a)와 가이드 결합구(123a)를 형성하고, 작동캠(143a)을 형성함과 동시에 작동공(146a)을 형성한 작동가이드구(145a)를 형성한 작동샤프트(140a)를 구비하여 작동샤프트(140)의 대용으로 구성한 것을 특징으로 하는 맨홀용 덮개의 안전개폐 장치.7. The method of claim 1 or 6,
The main housing 110 is provided with a main housing 110a that integrally forms the hydraulic housing 120, a hydraulic passage 112a and a guide coupling hole 123a are formed, and an operation cam 143a is formed. A safety opening and closing device for a manhole cover, characterized in that it is configured as a substitute for the operation shaft 140 by having an operation shaft 140a having an operation guide sphere 145a having an operation hole 146a at the same time.
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH068662U (en) * 1992-06-10 1994-02-04 カブイル パク Hinges for building doors
KR200238712Y1 (en) * 2001-02-06 2001-09-26 박점식 door hinge
JP2007303241A (en) * 2006-05-15 2007-11-22 Takashuu:Kk Opening and closing device of manhole cover
JP3157875U (en) * 2009-12-18 2010-03-04 ▲聰▼華 王 Manhole cover
KR20120074445A (en) * 2010-12-28 2012-07-06 정순자 Buffer of a hinge to open and shut a door
KR20130033758A (en) * 2011-09-27 2013-04-04 에스티엑스조선해양 주식회사 Manhole safety cover for vessel
KR20170021080A (en) * 2015-08-17 2017-02-27 장종복 Oil pressure hinge for opening and closing a door
KR20180064040A (en) * 2016-12-05 2018-06-14 서원코리아 주식회사 Door hinge
KR20200058190A (en) * 2018-11-19 2020-05-27 (주)해인21 Opening and closing structure for manhole cover
KR20200084966A (en) * 2019-01-03 2020-07-14 주식회사 아이원이노텍 Hinge apparatus for upward opening door

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH068662U (en) * 1992-06-10 1994-02-04 カブイル パク Hinges for building doors
KR200238712Y1 (en) * 2001-02-06 2001-09-26 박점식 door hinge
JP2007303241A (en) * 2006-05-15 2007-11-22 Takashuu:Kk Opening and closing device of manhole cover
JP3157875U (en) * 2009-12-18 2010-03-04 ▲聰▼華 王 Manhole cover
KR20120074445A (en) * 2010-12-28 2012-07-06 정순자 Buffer of a hinge to open and shut a door
KR20130033758A (en) * 2011-09-27 2013-04-04 에스티엑스조선해양 주식회사 Manhole safety cover for vessel
KR20170021080A (en) * 2015-08-17 2017-02-27 장종복 Oil pressure hinge for opening and closing a door
KR20180064040A (en) * 2016-12-05 2018-06-14 서원코리아 주식회사 Door hinge
KR20200058190A (en) * 2018-11-19 2020-05-27 (주)해인21 Opening and closing structure for manhole cover
KR20200084966A (en) * 2019-01-03 2020-07-14 주식회사 아이원이노텍 Hinge apparatus for upward opening door

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