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KR100913841B1 - Locking manhole having the device for preventing destruction of screw - Google Patents

Locking manhole having the device for preventing destruction of screw Download PDF

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Publication number
KR100913841B1
KR100913841B1 KR1020080086078A KR20080086078A KR100913841B1 KR 100913841 B1 KR100913841 B1 KR 100913841B1 KR 1020080086078 A KR1020080086078 A KR 1020080086078A KR 20080086078 A KR20080086078 A KR 20080086078A KR 100913841 B1 KR100913841 B1 KR 100913841B1
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KR
South Korea
Prior art keywords
manhole
manhole cover
screw
frame
cover
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KR1020080086078A
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Korean (ko)
Inventor
최익구
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주식회사 세계주철
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Priority to KR1020080086078A priority Critical patent/KR100913841B1/en
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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
    • E02D29/1427—Locking devices
    • 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
    • E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination
    • 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
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2999/00—Subject-matter not otherwise provided for in this subclass

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

A locking manhole is provided to prevent damage to a screw by inducing the center of the manhole frame to deviate from the center of the manhole cover when closing the manhole cover. A locking manhole(1) equipped with a screw protection device includes a manhole frame(10) and a manhole cover(30). The inner circumference of the manhole frame, it is formed A detachable support(20) with inner thread(22) is provided to the inner side of the manhole frame. A screw(40) is provided to the manhole cover to be connected to the inner thread of the support. The screw includes a head part(42) contacting the upper surface of the manhole cover and a support piece(44) supporting the bottom surface of the manhole cover. Joint projections(60) are formed on the inner lower part of the manhole frame and the bottom of the manhole cover. The joint projection has a joint hole in which both ends of a multi-joint connector(50) are hinged through a rotary shaft(56) to connect the manhole frame and the manhole cover. The multi-joint connector is folded/unfolded in the vertical direction, not in the horizontal direction, whereby both sides of a plurality of links(52) are overlapped and then hinged by a connection pin(54). The manhole cover maintains the completely open state when opened to one side through the links.

Description

스크류 파손방지수단을 구비한 잠금맨홀{LOCKING MANHOLE HAVING THE DEVICE FOR PREVENTING DESTRUCTION OF SCREW}LOCKING MANHOLE HAVING THE DEVICE FOR PREVENTING DESTRUCTION OF SCREW}

본 발명은 스크류를 이용하여 맨홀덮개를 개폐하도록 한 잠금맨홀에 있어 상기 스크류의 파손방지수단을 구비한 잠금맨홀에 관한 것으로, 더욱 상세하게는 맨홀틀의 내주면에 지지대를 착탈가능토록 형성하고 맨홀덮개에는 상기 지지대에 체결되는 스크류를 형성하여 상기 맨홀덮개를 스크류로써 개폐할 수 있도록 한 잠금맨홀을 형성하되, 상기 잠금맨홀의 맨홀틀과 맨홀덮개를 다관절 연결구로 상호 연결하여 맨홀덮개의 폐쇄시 맨홀틀과 맨홀덮개의 중심이 일치하지 않도록 유도함으로써 스크류와 지지대의 충돌을 피할 수 있도록 한 스크류 파손방지수단을 구비한 잠금맨홀에 관한 것이다.The present invention relates to a lock manhole provided with a means for preventing damage of the screw in a lock manhole for opening and closing a manhole cover by using a screw, and more particularly, to form a detachable support on an inner circumferential surface of the manhole frame and to cover the manhole cover. There is formed a screw to be fastened to the support to form a lock manhole to open and close the manhole cover with a screw, the manhole frame and the manhole cover of the lock manhole interconnected by articulated joints to close the manhole cover The present invention relates to a lock manhole having screw breakage preventing means for preventing the screw and the support from colliding by inducing the center of the frame and the manhole cover not to coincide.

일반적으로 맨홀은 배수관로나 전력선 및 통신선 매설용 지하구조물의 개구부에 설치되는 것으로 맨홀틀 및 상기 맨홀틀에 안착 되는 맨홀덮개로 구성되며, 상기와 같은 일반적인 구성의 맨홀은 차로에 설치된 경우에 있어 맨홀덮개의 이탈에 따른 사고유발 및 맨홀덮개의 유동에 따른 소음발생의 문제점과 함께 하천 둔치 에 설치된 맨홀에 있어서는 하천범람시 하천수가 유입되는 문제점이 있을 뿐만 아 아니라, 설치장소에 관계없이 장시간 방치되었을 경우 맨홀덮개가 쉽게 개방되지 않는 문제점이 있다.In general, the manhole is installed in the drainage pipeline or the opening of the underground structure for laying the power lines and communication lines. The manhole is composed of a manhole frame and a manhole cover seated on the manhole frame. In addition to the problems caused by accidents and noise caused by the flow of manhole cover, the manholes installed on the river banks have not only problems of inflow of river water during river flooding, but also manholes if left unattended for a long time regardless of the installation location. There is a problem that the cover does not open easily.

한편, 상기와 같은 일반적인 맨홀의 문제점을 해결하는 발명으로서 잠금장치가 구비된 맨홀(이하 '잠금맨홀'이라 한다)이 특허등록 제0590910호(2006.06.09. 등록)로 제안된바, 이하 상기 잠금맨홀의 구성을 도 1 내지 도 3을 참고하여 살펴본다.On the other hand, as an invention to solve the problems of the general manhole as described above, a manhole equipped with a locking device (hereinafter referred to as a 'lock manhole') has been proposed in Patent Registration No. 0590910 (registered on June 09, 2006), the lock The configuration of the manhole will be described with reference to FIGS. 1 to 3.

종래 잠금맨홀(100)은 맨홀틀(110)의 하부 내면에 걸림홈(112)을 형성하고, 상기 걸림홈(112)에 착탈되는 지지대(120)의 중앙에는 암나사부(122)를 형성하며, 맨홀덮개(130)에는 상기 지지대(120)의 암나사부(122)에 체결되는 스크류(140)를 회전가능토록 형성하여 맨홀틀(110)에서 맨홀덮개(130)를 개폐할 수 있도록 하되, 상기 스크류(140)의 상단 머리부(142)는 맨홀덮개(130)의 상측면에 접하도록 함과 아울러 맨홀덮개(130)의 하측면을 받쳐주는 받침편(144)을 상기 스크류(140)에 형성한다.The conventional lock manhole 100 forms a locking groove 112 on the lower inner surface of the manhole frame 110, and forms a female screw portion 122 in the center of the support 120 detachable from the locking groove 112, Manhole cover 130 is formed so that the screw 140 is fastened to the female screw portion 122 of the support 120 to be rotatable to open and close the manhole cover 130 in the manhole frame 110, the screw The upper head 142 of the 140 is in contact with the upper surface of the manhole cover 130 and forms a support piece 144 supporting the lower surface of the manhole cover 130 on the screw 140. .

상기와 같은 종래 잠금맨홀(100)에 의하면, 맨홀틀(110)의 걸림홈(112)에 지지대(120)를 부착한 후, 맨홀덮개(130)를 맨홀틀(110)에 안착시킨 다음 렌치 등을 이용하여 스크류(140)를 지지대(120)에 체결함으로써, 맨홀덮개(130)가 도 2에 도 시된 바와 같이 맨홀틀(110)에 견고히 고정되어 차량과 같은 외력에 의하여 맨홀덮개(130)가 이탈하지 않음은 물론이고 맨홀덮개(130)의 유동에 따른 소음이 발생하지 않을 뿐만 아니라, 맨홀틀(110)과 맨홀덮개(130)의 안착면 사이에 패킹(113)을 형성하여 수밀(水密) 또한 유지할 수 있다.According to the conventional lock manhole 100 as described above, after attaching the support 120 to the locking groove 112 of the manhole frame 110, the manhole cover 130 is seated on the manhole frame 110, then a wrench, etc. By fastening the screw 140 to the support 120 by using, the manhole cover 130 is firmly fixed to the manhole frame 110 as shown in Figure 2 is the manhole cover 130 by an external force such as a vehicle Not only does not deviate, no noise caused by the flow of the manhole cover 130, as well as the packing 113 is formed between the seating surface of the manhole frame 110 and the manhole cover 130 watertight (水密) It can also be maintained.

그리고 맨홀덮개(130)를 개방하기 위하여 스크류(140)를 역방향으로 회전시키면, 도 3에 도시된 바와 같이 스크류(140)의 받침편(144)이 맨홀덮개(130)의 하측면을 밀어올려 맨홀덮개(130)가 상승함에 따라 장시간 방치된 맨홀의 경우에도 그 개방이 용이하다.And when the screw 140 is rotated in the reverse direction to open the manhole cover 130, as shown in Figure 3, the support piece 144 of the screw 140 pushes the lower side of the manhole cover 130 to the manhole As the cover 130 is raised, even in the case of a manhole that is left for a long time, its opening is easy.

그러나, 상기와 같은 종래 잠금맨홀(100)은 작업자의 부주의에 의하여 스크류(140) 등이 파손될 우려가 있었는바, 완전 개방된 맨홀덮개(130)를 닫는 경우 스크류(140)의 하단이 도 3의 도시와 같이 지지대(120)의 암나사부(122)에 먼저 닿게 됨에도 불구하고, 작업자가 중량의 맨홀덮개(130)를 투기(投棄)하여 스크류(140)에 형성된 받침편(144)이나 스크류(140)의 수나사, 혹은 지지대(120)가 파손되는 문제점이 있었다.However, in the conventional lock manhole 100 as described above, the screw 140 may be damaged due to the carelessness of the operator. When closing the fully opened manhole cover 130, the lower end of the screw 140 is shown in FIG. Although the first contact with the female threaded portion 122 of the support 120 as shown, the operator dumps the manhole cover 130 of the weight (형성된) formed on the screw 140, the support piece 144 or screw 140 ), There was a problem that the male screw, or the support 120 is broken.

본 발명은 상기와 같은 종래 잠금맨홀의 문제점을 해결하기 위한 것으로, 개방된 잠금맨홀의 맨홀덮개를 폐쇄하는 경우 작업자가 주의를 기하지 않더라도 잠금맨홀의 맨홀덮개에 형성된 스크류가 지지대에 충돌하지 않도록 유도함으로써 스크류의 파손을 방지할 수 있도록 하는 스크류 파손방지수단을 구비한 잠금맨홀을 구성하는 데 본 발명의 목적이 있다.The present invention is to solve the problems of the conventional lock manhole as described above, when closing the manhole cover of the open lock manhole, even if the operator is not careful to guide the screw formed in the manhole cover of the lock manhole does not collide with the support It is an object of the present invention to configure a lock manhole having a screw breakage preventing means to prevent the breakage of the screw.

본 발명의 목적을 달성하기 위한 스크류 파손방지수단을 구비한 잠금맨홀은, 맨홀틀의 내주면에 암나사부를 형성한 지지대를 착탈가능토록 형성하고 맨홀덮개에는 상기 지지대의 암나사부에 체결되는 스크류를 회전가능토록 형성하되 맨홀덮개의 상측면에 접하는 머리부 및 맨홀덮개의 하측면을 받쳐주는 받침편을 상기 스크류에 형성한 잠금맨홀에 있어서, 체결공을 형성한 체결돌기를 맨홀틀의 내주면 하부 일측과 맨홀덮개의 저면 일측에 각각 형성하되 상기 각 체결돌기에 형성한 체결공에 다수의 링크절로 이루어진 다관절 연결구의 양측단을 회전축으로 힌지체결하여 맨홀틀과 맨홀덮개를 상호 연결함으로써, 맨홀덮개의 개방시 상기 다관절 연결구에 의하여 맨홀덮개가 일측으로 개방된 상태를 유지하고, 개방된 맨홀덮개의 폐쇄시에는 맨홀틀과 맨홀덮개의 중심이 일치하지 않도록 유도하여 스크류가 지지대에 충돌하지 않도록 한 것을 특징으로 한다.Locking manhole with screw breakage prevention means for achieving the object of the present invention, to form a removable support for forming a female threaded portion on the inner circumferential surface of the manhole frame, the manhole cover is rotatable to the screw fastened to the female threaded portion of the support In the lock manhole formed to the head and the support piece for supporting the upper side of the manhole cover and the lower side of the manhole cover formed in the screw, the fastening protrusions formed with the fastening hole, the lower side of the inner circumferential surface of the manhole frame and the manhole When the manhole cover and the manhole cover are interconnected by mutually connecting the manhole frame and the manhole cover by hinged both ends of the multi-joint connector having a plurality of link joints to the fastening holes formed in the respective fastening protrusions formed on the respective fastening protrusions, respectively. The manhole cover is kept open to one side by the articulated joint, and the manhole is closed when the open manhole cover is closed. The center of the frame and the manhole cover is guided so that the screw does not collide with the support.

그리고 본 발명은 상기 다관절 연결구를 구성함에 있어, 한 쌍의 체결돌기 사이에 힌지체결되는 다관절 연결구의 길이를 20~50cm로 형성하는 것과 상기 다관절 연결구를 통상의 동력전달용 체인을 이용하는 것에 부가적인 특징이 있다.In the present invention, in the construction of the articulated joint, the articulated connector is hinged between a pair of fastening protrusions to form a length of 20 to 50 cm, and the articulated joint is used to use a conventional power transmission chain. There are additional features.

상기와 같이 구성한 본 발명에 의하면, 맨홀틀과 맨홀덮개의 일측이 다관절 연결구로 연결되어 있음에 따라, 맨홀덮개의 개방시 맨홀덮개가 맨홀틀에서 완전히 이탈하지 않고 맨홀덮개의 일측단이 맨홀틀의 안쪽에 걸쳐진 상태로 맨홀덮개가 열린 상태를 유지하고, 상기와 같은 상태에서 맨홀덮개를 폐쇄하게 되면 맨홀틀과 맨홀덮개의 중심이 불일치하여 맨홀덮개가 맨홀틀의 상단에 걸쳐지게 되므로, 결과적으로 맨홀덮개에 형성한 스크류의 종단과 맨홀틀에 장착한 지지대의 충돌을 피할 수 있어 잠금맨홀에 형성된 스크류 등의 파손을 방지하는 효과가 있다.According to the present invention configured as described above, since one side of the manhole frame and the manhole cover is connected by the articulated joint, the manhole cover is not completely detached from the manhole frame when the manhole cover is opened, and one end of the manhole cover is manhole frame If the manhole cover is kept open while the manhole cover is closed, and the manhole cover is closed in the above state, the center of the manhole frame and the manhole cover are inconsistent, so that the manhole cover spans the top of the manhole frame. Since the collision of the end of the screw formed in the manhole cover and the support mounted on the manhole frame can be avoided, there is an effect of preventing damage to the screw formed in the lock manhole.

이하 본 발명의 바람직한 실시예에 따른 스크류 파손방지수단을 구비한 잠금맨홀의 구성을 도 4 및 도 5를 참조하여 상세히 살펴본다.Hereinafter, a configuration of a lock manhole having a screw breakage prevention means according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 4 and 5.

본 발명에 따른 잠금맨홀(1)은 맨홀틀(10)의 내주면에 걸림홈(12)을 형성하고, 상기 걸림홈(12)에 착탈되는 지지대(20)의 중앙에는 암나사부(22)를 형성하며, 맨홀덮개(30)에는 상기 지지대(20)의 암나사부(22)에 체결되는 스크류(40)를 회전가능토록 형성하여 맨홀틀(10)에 맨홀덮개(30)를 개폐할 수 있도록 한다.The lock manhole 1 according to the present invention forms a locking groove 12 on the inner circumferential surface of the manhole frame 10, and a female screw portion 22 is formed in the center of the support 20 detachable from the locking groove 12. The manhole cover 30 is rotatably formed with a screw 40 fastened to the female screw part 22 of the support 20 to open and close the manhole cover 30 to the manhole frame 10.

그리고 상기 맨홀틀(10)에 형성한 걸림홈(12)은 맨홀덮개(30)가 안착되는 맨홀틀(10)의 받침턱(11) 하측에 형성하고, 지지대(20)에 체결되는 스크류(40)는 맨홀덮개(30)의 중앙부분에 형성한 통공(32)을 관통하여 회전가능토록 형성하되, 스크류(40) 상단의 머리부(42)는 맨홀덮개(30)의 상측면에 접하도록 함과 아울러 맨홀덮개(30)의 하측면을 받쳐주는 받침편(44)을 상기 스크류(40)에 형성함으로써 잠금맨홀(1)을 구성한다.In addition, the locking groove 12 formed in the manhole frame 10 is formed under the support jaw 11 of the manhole frame 10 on which the manhole cover 30 is seated, and the screw 40 is fastened to the support 20. ) Is rotatably formed through the through-hole 32 formed in the central portion of the manhole cover 30, the head 42 of the upper end of the screw 40 is in contact with the upper side of the manhole cover 30 In addition, the locking manhole 1 is configured by forming a support piece 44 supporting the lower side of the manhole cover 30 in the screw 40.

본 발명은 상기와 같이 구성된 잠금맨홀(1)에 있어 상기 잠금맨홀(1)의 맨홀틀(10)과 맨홀덮개(30)를 다관절 연결구(50)로 상호 연결하는 스크류 파손방지수단을 구비하는바, 체결공(65)을 형성한 체결돌기(60)를 상기 맨홀틀(10)의 내주면 하부 일측과 맨홀덮개(30)의 저면 일측에 각각 형성하고, 다수의 링크절(52)을 연결핀(54)으로써 힌지체결한 다관절 연결구(50)를 형성하되, 상기 다관절 연결구(50)의 양측단을 맨홀틀(10) 및 맨홀덮개(30)에 각각 형성한 체결돌기(60)의 체결공(65)에 회전축(56)으로 각각 힌지체결하여 맨홀틀(10)과 맨홀덮개(30)를 상호 연결한다.The present invention provides a screw break prevention means for interconnecting the manhole frame 10 and the manhole cover 30 of the lock manhole 1 with the articulated joint 50 in the lock manhole 1 configured as described above. Bars and fastening protrusions 60 having fastening holes 65 are formed on one side of the inner circumferential surface of the manhole frame 10 and one side of the bottom surface of the manhole cover 30, and a plurality of linkages 52 are connected to the connection pins 52. (54) to form a hinged multi-joint connector 50, the fastening of the fastening protrusions 60 formed on both sides of the manhole frame 10 and the manhole cover 30, respectively, both ends of the articulated connector 50 The hinge 65 is hinged to the ball 65 by the rotation shaft 56, and the manhole frame 10 and the manhole cover 30 are connected to each other.

상기에 있어 맨홀틀(10)과 맨홀덮개(30)에 각각 형성한 체결돌기(60)는 별도의 체결부재로 형성하여 맨홀틀(10)과 맨홀덮개(30)에 부착할 있음은 물론이고, 맨 홀틀(10) 및 맨홀덮개(30)의 주조시 각 체결돌기(60)를 일체로 형성할 수도 있다.In the above, the fastening protrusions 60 formed on the manhole frame 10 and the manhole cover 30, respectively, are formed as a separate fastening member to be attached to the manhole frame 10 and the manhole cover 30, of course, Each of the fastening protrusions 60 may be integrally formed when the manhole frame 10 and the manhole cover 30 are cast.

그리고 상기 다관절 연결구(50)는 도 5의 각 실시예에 도시된 바와 같이 다관절 연결구(50)의 외형에 한정되지 않는 것으로서 다수의 링크절(52)을 연결핀(54)으로 상호 힌지체결하여 상하 한 방향으로 접히거나 펴지는 반면 좌우로는 절곡되지 않는 것으로 만족하는바, 도 5의 <가>에 도시된 다관절 연결구(50a)와 같이 각 링크절(52)의 양측단을 중첩하여 연결핀(54)으로 힌지체결 할 수도 있고, <나>에 도시된 것처럼 다관절 연결구(50b)를 이미 상용화된 통상의 동력전달용 체인을 이용함으로써 제작을 간편히 할 수도 있으며, <다>에 도시된 바와 같이 돌출부(52a)와 요입부(52b)가 형성된 다수의 링크절(52)을 연속적으로 상호 결합하여 연결핀(54)으로 힌지체결 함으로써 다관절 연결구(50c)를 형성할 수도 있다.And the articulated joint 50 is not limited to the external shape of the articulated joint 50 as shown in each embodiment of Figure 5 as a plurality of link joints 52 hinged to each other with a connecting pin 54 It is satisfied that it is folded or unfolded in one direction while not being bent from side to side, and overlaps both ends of each link section 52 as shown in the articulated connector 50a shown in FIG. It may be hinged with a connecting pin 54, and as shown in <b>, the articulated joint 50b may be made simple by using a conventional power transmission chain that is already commercialized, and shown in <d>. As described above, a plurality of linkages 50c may be formed by continuously coupling a plurality of linkages 52 formed with the protrusions 52a and the concave portions 52b and hinged with the connection pins 54.

한편, 상하 한 방향으로 절곡되도록 한 다관절 연결구(50)의 작동 방향을 감안하여 상기 다관절 연결구(50)가 체결된 맨홀덮개(30)의 대항측에 대해서만 걸고리(34)를 형성함과 아울러 그 개방되는 방향을 맨홀덮개(30)의 상측에 표시하여 작업자가 일정 방향으로 맨홀덮개(30)를 개방하도록 함이 바람직하다. 또한, 맨홀틀(10)과 맨홀덮개(30)에 각각 형성한 체결돌기(60) 사이에 힌지체결되는 다관절 연결구(50)의 길이는 통상적인 맨홀의 직경을 감안하여 20~50cm로 형성함과 아울러 다관절 연결구(50)를 구성하는 링크절(52)은 3~8마디로 형성함이 바람직한바, 이는 다관절 연결구(50)가 여러 방향으로 절곡되거나 혹은 그 길이가 너무 길거나 짧을 경우에는 맨홀덮개(30)가 일정한 개방위치 및 폐쇄작용을 유지하지 못하기 때문이다. 도면 중 미설명 부호인 '13'는 패킹(13)이다.On the other hand, in consideration of the operating direction of the articulated connector 50, which is bent in one direction up and down, the hook 34 is formed only on the opposite side of the manhole cover 30 to which the articulated connector 50 is fastened. The opening direction is displayed on the upper side of the manhole cover 30 so that the operator can open the manhole cover 30 in a predetermined direction. In addition, the length of the articulated connector 50 which is hinged between the fastening protrusions 60 formed on the manhole frame 10 and the manhole cover 30, respectively, is formed in 20-50 cm in consideration of the diameter of a typical manhole. In addition, the link joint 52 constituting the articulated joint 50 is preferably formed of 3 to 8 bars, which is when the articulated joint 50 is bent in various directions or its length is too long or short. This is because the manhole cover 30 does not maintain a constant opening position and closing action. In the drawings, reference numeral 13 denotes a packing 13.

이하 본 발명에 따른 스크류 파손방지수단을 구비한 잠금맨홀의 작용을 도 6 내지 도 9를 참고하여 상세히 살펴본다.Hereinafter, the operation of the lock manhole having the screw breakage prevention means according to the present invention will be described in detail with reference to FIGS. 6 to 9.

본 발명에 따른 잠금맨홀(1)은 종래와 같이 맨홀덮개(30)의 이탈방지, 소음방지, 수밀유지의 작용을 함은 물론이고, 맨홀덮개(1)의 개방 후 폐쇄시에는 스크류(40)의 파손을 방지하는 작용을 하는바, 도 6에 도시된 바와 같이 스크류(40)를 풀어 맨홀덮개(30)가 들뜬 상태에서 걸고리(34)를 들어올려 맨홀덮개(30)를 개방하면, 상기 걸고리(34)가 형성된 맨홀덮개(30)의 일측이 맨홀틀(10)에서 이탈하는 반면, 다관절 연결구(50)가 체결된 맨홀덮개(30)의 다른 일측은 맨홀틀(10)의 안쪽으로 유입되고, 결국에는 다관절 연결구(50)에 의하여 도 7에 도시된 바와 같이 맨홀덮개(30)가 맨홀틀(10)에서 완전히 이탈하지 않고 다관절 연결구(50)가 체결된 맨홀덮개(30)의 일측단이 맨홀틀(10)의 안쪽에 걸쳐진 상태에서 맨홀덮개(30)가 열린 상태를 유지한다.Lock manhole (1) according to the present invention, as well as the act of preventing the departure of the manhole cover 30, noise prevention, watertight maintenance, as well as the screw 40 when closing after opening the manhole cover (1) 6 to prevent the breakage of the bar, as shown in Figure 6 by loosening the screw 40 to lift the hook 34 in the state of the manhole cover 30 is lifted open the manhole cover 30, the hook One side of the manhole cover 30 in which the 34 is formed is separated from the manhole frame 10, while the other side of the manhole cover 30 to which the articulated joint 50 is fastened is introduced into the manhole frame 10. As a result, as shown in FIG. 7 by the articulated connector 50, the manhole cover 30 is not completely detached from the manhole frame 10, but the manhole cover 30 to which the articulated connector 50 is fastened. The manhole cover 30 is maintained in an open state in a state where one end is covered with the inside of the manhole frame 10.

이후 맨홀덮개(30)의 폐쇄시에는, 개방된 맨홀덮개(30)의 상단면과 맨홀틀(10)의 상단면이 접하는 임의의 접점을 회전중심으로 하여 맨홀덮개(30)가 회전하는데, 이때 맨홀덮개(30)의 자중(自重)에 의해 상기 임의의 접점이 더욱 맨홀 틀(10)의 중심측으로 이동하고, 그에 따라 맨홀덮개(30)와 맨홀틀(10)의 중심이 일치하지 않아 도 8 및 도 9에 도시된 바와 같이 맨홀덮개(30)가 맨홀틀(10)에 걸쳐지게 되며, 작업자가 걸쳐진 맨홀덮개(30)를 밀어 넣는 것으로 맨홀덮개(30)를 맨홀틀(10)에 안치한다.Then, when the manhole cover 30 is closed, the manhole cover 30 is rotated by using any contact point where the top surface of the open manhole cover 30 and the top surface of the manhole frame 10 are in contact with each other. Due to the weight of the manhole cover 30, the arbitrary contact is further moved to the center side of the manhole frame 10, whereby the centers of the manhole cover 30 and the manhole frame 10 do not coincide. And as shown in FIG. 9, the manhole cover 30 is spread over the manhole frame 10, and the manhole cover 30 is placed in the manhole frame 10 by pushing the manhole cover 30 covered by the worker. .

따라서, 상기와 같은 본 발명에 의하면 맨홀덮개(30)의 개방시 맨홀덮개(30)가 맨홀틀(10)에서 완전히 이탈하지 않으므로 맨홀덮개(30)의 도난을 방지할 수 있음은 물론이고, 맨홀덮개(30)의 폐쇄시 작업자가 주의를 기하지 않더라도 맨홀덮개(30)에 형성한 스크류(40)가 지지대(20)와 충돌하는 것을 피할 수 있으므로, 잠금맨홀(1)의 훼손 및 파손을 방지한다.Therefore, according to the present invention as described above, since the manhole cover 30 does not completely escape from the manhole frame 10 when the manhole cover 30 is opened, the manhole cover 30 may be prevented from being stolen. When the cover 30 is closed, even if the operator is not careful, the screw 40 formed in the manhole cover 30 can be prevented from colliding with the support 20, thereby preventing damage and damage to the lock manhole 1. do.

도 1은 종래 잠금맨홀의 구성을 나타내는 분리사시도1 is an exploded perspective view showing the configuration of a conventional lock manhole

도 2 및 도 3은 종래 잠금맨홀의 사용상태를 나타내는 단면도2 and 3 is a cross-sectional view showing a state of use of the conventional lock manhole

도 4는 본 발명에 따른 잠금맨홀의 구성을 나타내는 단면도4 is a cross-sectional view showing the configuration of a lock manhole according to the present invention.

도 5는 본 발명에 따른 잠금맨홀의 다관절 연결구를 나타내는 예시도5 is an exemplary view showing a multi-joint connector of the lock manhole according to the invention

도 6 내지 도 9는 본 발명에 따른 잠금맨홀의 작용상태도6 to 9 is a state diagram of the operation of the lock manhole according to the present invention

*** 도면의 주요 부분에 대한 부호의 설명 ****** Explanation of symbols for the main parts of the drawing ***

1: 잠금맨홀 10: 맨홀틀1: lock manhole 10: manhole frame

12: 걸림홈 20: 지지대12: hanging groove 20: support

22: 암나사부 30: 맨홀덮개22: internal thread 30: manhole cover

40: 스크류 42: 머리부40: screw 42: head

44: 받침편 50(50a,50b,50c): 다관절 연결구44: base 50 (50a, 50b, 50c): articulated joint

52: 링크절 54: 연결핀52: link clause 54: connecting pin

56: 회전축 60: 체결돌기56: rotation axis 60: fastening protrusion

65: 체결공65: fastener

Claims (2)

맨홀틀(10)의 내주면에 암나사부(22)를 형성한 지지대(20)를 착탈가능토록 형성하고, 맨홀덮개(30)에는 상기 지지대(20)의 암나사부(22)에 체결되는 스크류(40)를 회전가능토록 형성하되, 상기 스크류(40)에는 맨홀덮개(30)의 상측면에 접하는 머리부(42) 및 맨홀덮개(30)의 하측면을 받쳐주는 받침편(44)을 형성한 잠금맨홀(1)에 있어서;The support 20 having the female threaded portion 22 formed on the inner circumferential surface of the manhole frame 10 is detachably formed, and the manhole cover 30 has a screw 40 fastened to the female threaded portion 22 of the support 20. ) Is formed so as to be rotatable, and the screw 40 has a head 42 in contact with the upper side of the manhole cover 30 and a support piece 44 supporting the lower side of the manhole cover 30. In the manhole 1; 체결공(65)을 형성한 체결돌기(60)를 맨홀틀(10)의 내주면 하부 일측과 맨홀덮개(30)의 저면 일측에 각각 형성하고, 상기 각 체결돌기(60)에 형성한 체결공(65)에 다관절 연결구(50)의 양측단을 회전축(56)으로 힌지체결하여 맨홀틀(10)과 맨홀덮개(30)를 상호 연결하되, 상기 다관절 연결구(50)는 상하 한 방향으로 접히거나 펴지는 반면 좌우로는 절곡되지 않도록 다수의 링크절(52)의 양측단을 중첩하여 연결핀(54)으로 힌지체결하고, 아울러 상기 다관절 연결구(50)는 맨홀덮개(30)의 개방시 맨홀덮개(30)가 완전히 이탈하지 않고 일측으로 개방된 상태를 유지할 수 있도록 3~8마디의 링크절(52)을 20~50cm의 길이로 형성하며, 한편으론 상기 다관절 연결구(50)가 체결된 맨홀덮개(30)의 대항측에 대해서만 걸고리(34)를 형성한 것을 특징으로 하는 스크류 파손방지수단을 구비한 잠금맨홀.The fastening holes 60 having the fastening holes 65 are formed at one side of the lower inner circumferential surface of the manhole frame 10 and at one side of the bottom surface of the manhole cover 30, respectively, and fastening holes formed at the respective fastening protrusions 60 ( 65) hinged both ends of the articulated connector 50 with the rotation shaft 56 to connect the manhole frame 10 and the manhole cover 30, but the articulated connector 50 is folded in one direction up and down Or both sides of the plurality of link joints 52 are hinged by the connecting pins 54 so as not to be bent from side to side, while the multi-joint connector 50 is opened when the manhole cover 30 is opened. The manhole cover 30 forms a link joint 52 of 3 to 8 nodes in a length of 20 to 50 cm so that the manhole cover 30 can be kept open to one side without being completely detached, and the articulated joint 50 is fastened. Screw breakage prevention means characterized in that the hook 34 is formed only on the opposite side of the manhole cover 30 A locking manhole. 맨홀틀(10)의 내주면에 암나사부(22)를 형성한 지지대(20)를 착탈가능토록 형성하고, 맨홀덮개(30)에는 상기 지지대(20)의 암나사부(22)에 체결되는 스크류(40)를 회전가능토록 형성하되, 상기 스크류(40)에는 맨홀덮개(30)의 상측면에 접하는 머리부(42) 및 맨홀덮개(30)의 하측면을 받쳐주는 받침편(44)을 형성한 잠금맨홀(1)에 있어서;The support 20 having the female threaded portion 22 formed on the inner circumferential surface of the manhole frame 10 is detachably formed, and the manhole cover 30 has a screw 40 fastened to the female threaded portion 22 of the support 20. ) Is formed so as to be rotatable, and the screw 40 has a head 42 in contact with the upper side of the manhole cover 30 and a support piece 44 supporting the lower side of the manhole cover 30. In the manhole 1; 체결공(65)을 형성한 체결돌기(60)를 맨홀틀(10)의 내주면 하부 일측과 맨홀덮개(30)의 저면 일측에 각각 형성하고, 상기 각 체결돌기(60)에 형성한 체결공(65)에 다관절 연결구(50)의 양측단을 회전축(56)으로 힌지체결하여 맨홀틀(10)과 맨홀덮개(30)를 상호 연결하되, 상기 다관절 연결구(50)는 상하 한 방향으로 접히거나 펴지는 반면 좌우로는 절곡되지 않도록 돌출부(52a)와 요입부(52b)가 형성된 다수의 링크절(52)을 연속적으로 상호 결합하여 연결핀(54)으로써 힌지체결하고, 아울러 상기 다관절 연결구(50)는 맨홀덮개(30)의 개방시 맨홀덮개(30)가 완전히 이탈하지 않고 일측으로 개방된 상태를 유지할 수 있도록 3~8마디의 링크절(52)을 20~50cm의 길이로 형성하며, 한편으론 상기 다관절 연결구(50)가 체결된 맨홀덮개(30)의 대항측에 대해서만 걸고리(34)를 형성한 것을 특징으로 하는 스크류 파손방지수단을 구비한 잠금맨홀.The fastening holes 60 having the fastening holes 65 are formed at one side of the lower inner circumferential surface of the manhole frame 10 and at one side of the bottom surface of the manhole cover 30, respectively, and fastening holes formed at the respective fastening protrusions 60 ( 65) hinged both ends of the articulated connector 50 with the rotation shaft 56 to connect the manhole frame 10 and the manhole cover 30, but the articulated connector 50 is folded in one direction up and down Or a plurality of link segments 52 formed with a protrusion 52a and a concave portion 52b so as not to be bent from side to side while being stretched or hinged, and hinged with a connecting pin 54, and the multi-joint connector 50 forms a link section 52 of 3 to 8 nodes with a length of 20 to 50 cm so that the manhole cover 30 can be kept open to one side without being completely detached when the manhole cover 30 is opened. On the other hand, the hook 34 is formed only on the opposite side of the manhole cover 30 to which the articulated joint 50 is fastened. A manhole provided with the locking means for preventing screw breakage characterized.
KR1020080086078A 2008-09-01 2008-09-01 Locking manhole having the device for preventing destruction of screw KR100913841B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101054546B1 (en) * 2010-12-14 2011-08-04 주식회사 세계주철 The circle manhole cover that can be easily opening and closing
KR101419215B1 (en) * 2012-08-31 2014-07-15 주식회사 아스플로 Socket for vacuum port
KR101580959B1 (en) * 2015-06-04 2015-12-31 주식회사 신평주철 A Locking type Manhole assembly having device for lifting manhole cover
KR101702340B1 (en) 2016-09-06 2017-02-06 (주)세원금속 Manhole
CN115853020A (en) * 2022-12-14 2023-03-28 贵州电网有限责任公司 Pit falling-proof device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060019297A (en) * 2004-08-27 2006-03-03 유근호 A locker of manhole cover
KR100590910B1 (en) * 2005-10-13 2006-06-22 주식회사 세계주철 A manhole with locking device
KR100684103B1 (en) 2006-10-12 2007-02-20 재 혁 허 A manhole

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060019297A (en) * 2004-08-27 2006-03-03 유근호 A locker of manhole cover
KR100590910B1 (en) * 2005-10-13 2006-06-22 주식회사 세계주철 A manhole with locking device
KR100684103B1 (en) 2006-10-12 2007-02-20 재 혁 허 A manhole

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101054546B1 (en) * 2010-12-14 2011-08-04 주식회사 세계주철 The circle manhole cover that can be easily opening and closing
KR101419215B1 (en) * 2012-08-31 2014-07-15 주식회사 아스플로 Socket for vacuum port
KR101580959B1 (en) * 2015-06-04 2015-12-31 주식회사 신평주철 A Locking type Manhole assembly having device for lifting manhole cover
KR101702340B1 (en) 2016-09-06 2017-02-06 (주)세원금속 Manhole
CN115853020A (en) * 2022-12-14 2023-03-28 贵州电网有限责任公司 Pit falling-proof device

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