KR100980362B1 - Locking apparatus for handhole - Google Patents

Locking apparatus for handhole Download PDF

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Publication number
KR100980362B1
KR100980362B1 KR1020100015949A KR20100015949A KR100980362B1 KR 100980362 B1 KR100980362 B1 KR 100980362B1 KR 1020100015949 A KR1020100015949 A KR 1020100015949A KR 20100015949 A KR20100015949 A KR 20100015949A KR 100980362 B1 KR100980362 B1 KR 100980362B1
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South Korea
Prior art keywords
handhole
hole
lid
locking
protrusion
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KR1020100015949A
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Korean (ko)
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이상각
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(주)한국주조
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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
    • E02D29/1454—Non-circular covers, e.g. hexagonal, elliptic
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/14—Geometrical or physical properties resilient or elastic
    • E02D2200/146—Springs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/16—Shapes
    • E02D2200/1607—Shapes round, e.g. circle
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0026—Metals

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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)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

PURPOSE: A handhole with a locking function is provided to improve productivity by installing a locking device in an actuating chamber formed in a hand hole cover. CONSTITUTION: A handhole with a locking function comprises a support jaw(21), a cover frame(2), an actuating hole(31), a handhole cover(3), and a locking device. The support jaw comprises a protruded hanging unit. The cover frame has a fastening hole and a coupling hole facing with the fastening hole. The actuating hole is coupled to the support jaw and has an actuating chamber. The handhole cover comprises a fastening protrusion inserted into the fastening hole. The locking device is formed in the actuating chamber and is fastened to the coupling hole.

Description

잠금기능을 갖는 핸드홀 {Locking apparatus for handhole}Locking apparatus for handholes {Locking apparatus for handhole}

본 발명은 잠금기능을 갖는 핸드홀에 관한 것으로서, 보다 상세하게는 잠금기능을 갖는 핸드홀은 핸드홀뚜껑에 작동실을 마련하고 장금장치을 설치하여 핸드뚜껑을 뚜껑틀에 체결함으로써, 구성요소를 줄어 원가 및 생산성을 향상시키고 유지보수가 용이하며 작동이 간편한 잠금기능을 갖는 핸드홀에 관한 것이다.
The present invention relates to a handhole having a locking function, and more particularly, a handhole having a locking function is provided with an operating chamber in the handhole lid and a locking device is installed to fasten the hand lid to the lid frame, thereby reducing components. The present invention relates to a handhole having a locking function that improves cost and productivity, is easy to maintain and easy to operate.

일반적으로, 핸드홀(Handhole)이란 맨홀(manhole)과 동일한 구조로 이루어져 있으며, 노면(路面)에서 지하로 사람이 출입하거나 손을 넣어 작업할 수 있게 만든 구멍으로, 용도에 따라 상.하수도용,우수용, 오수용, 및 전기통신용으로 구분되며 도로에 일정간격마다 설치되어 있다.In general, a handhole is made of the same structure as a manhole, and is a hole made by a person to enter or work under a ground from a road surface. It is divided into rainwater, sewage, and telecommunications and is installed on the road at regular intervals.

이와 같은 핸드홀의 상단에는 지하매설물의 유지 보수를 위해 출입할 수 있도록 주물로 형성된 핸드홀뚜껑이 안치되는데, 그 안치된 핸드홀뚜껑 상으로 고속으로 주행하는 차량이 지나갈 경우 전달되는 충격량으로 인해 덜컹거림으로서 교통소음이 발생하거나 심할 경우 외부로 이탈되어 안전사고까지 야기시킬 수 있는 폐단으로 인해 잠금기능이 구비된 맨홀이 제안되고 있다.At the top of such a handhole, a handhole cover formed of a casting is placed to allow entry and exit for maintenance of underground buried material. The handhole lid is rattled by the amount of impact delivered when a vehicle traveling at high speed passes over the enclosed handhole cover. As a traffic noise occurs or severely, the manhole equipped with a locking function has been proposed due to the closure which can be displaced to the outside and cause a safety accident.

도 1은 종래의 잠금기능이 구비된 핸드홀을 나타낸 분해상태 사시도이다.1 is an exploded perspective view showing a conventional hand hole with a locking function.

도시된 바와 같이, 종래의 잠금기능이 구비된 핸드홀은 내주연을 따라 단턱(110)이 돌출된 뚜껑틀(100)과, 상기 단턱(110)에 접촉지지 되도록 접촉대(210)가 하면의 가장자리를 따라 돌출되고, 하면에 양측이 개방된 안내함(220)이 구비되며, 상기 안내함(220)의 개방된 양측 부근에 위치하는 측부가 절개되어 작동요홈(230)이 형성된 핸드홀뚜껑(200)과, 상기 안내함(220)에 대칭되게 내재되는 것으로 일측면에 걸림홈(310a,310b)이 형성된 한 쌍의 중량체(300a,300b)와, 상기 한 쌍의 중량체(300a,300b)의 마주보는 면에 놓여지는 탄성스프링(400)으로 이루어져, 상기 한 쌍의 중량체(300a,300b)의 마주보는 면에 놓여진 상기 탄성스프링(400)은 압축된 상태로 복원력에 의해 상기 한쌍의 중량체(300a,300b)를 외측으로 밀어 상기 한 쌍의 중량체(300a,300b)의 일측면에 형성된 각 걸림홈(310a,310b)에 상기 접촉된 핸드홀뚜껑(200)의 접촉대(210)의 끝단과 상기 뚜껑틀(100)의 단턱(110)의 끝단이 물려 잠금된다. As shown in the drawing, a conventional hand hole with a locking function includes a lid frame 100 in which the step 110 is protruded along an inner circumference thereof, and a contact table 210 of the lower surface of the contact hole 210 so as to be in contact with the step 110. A guide hole 220 protruding along an edge and opening at both sides is provided at a lower surface thereof, and a side hole located near both open sides of the guide box 220 is cut to form a handhole cover 230 having an operation recess 230. 200, and a pair of weights (300a, 300b) having a locking groove (310a, 310b) formed on one side to be symmetrically embedded in the guide box 220, the pair of weights (300a, 300b) A pair of elastic springs 400 placed on opposite sides of the pair, and the elastic springs 400 placed on opposite sides of the pair of weight bodies 300a and 300b are compressed by a restoring force. Each locking groove 310 formed on one side of the pair of weight bodies 300a and 300b by pushing the weight bodies 300a and 300b to the outside. The end of the contact table 210 of the hand hole lid 200 and the end of the step 110 of the lid frame 100 is in contact with the a, 310b is locked.

이로 인해, 고속으로 주행하는 차량이 핸드홀뚜껑을 지나가더라도 흔들리지 않도록 하여 교통소음의 방지와 더불어 안전사고까지 예방하여 주는 이점을 제공하고 있다.As a result, the vehicle driving at high speed does not shake even when passing through the handhole cover, thereby preventing traffic noise and preventing safety accidents.

그러나 이와 같은 이점에도 불구하고 종래의 잠금기능이 구비된 핸드홀은 핸드홀뚜껑에 접촉대가 저면 둘래에 형성되고 저면에 안내함이 길게 형성됨으로써, 구성이 복잡하여 생산성이 저하되고, 무게가 무거워 작업자가 핸드홀틀에서 핸드홀뚜껑을 분리시키기 어려운 문제점이 있다.However, in spite of these advantages, the conventional hand hole with the locking function is formed on the bottom of the contact hole on the bottom of the hand hole and the guide is formed on the bottom of the bottom, the configuration is complicated, the productivity is reduced, the weight is heavy There is a problem that is difficult to separate the handhole cover from the handhole frame.

또한, 안내함에 체결을 위한 한조의 중량체가 구비됨으로써, 생산원가가 상승되고 설치공정이 복잡해지는 문제점이 상존하게 된다.
In addition, by providing a set of weights for fastening to the guide, there is a problem that the production cost is increased and the installation process is complicated.

본 발명은 상기한 문제점을 해결하기 위해 안출된 것으로서, 본 발명의 목적은 핸드홀뚜껑에 작동실을 마련하고 장금장치을 설치하여 핸드뚜껑을 뚜껑틀에 체결함으로써, 구성요소를 줄어 원가 및 생산성을 향상시키고 유지보수가 용이하며 작동이 간편한 잠금기능을 갖는 핸드홀을 제공하는데 그 목적이 있다.
The present invention has been made to solve the above problems, an object of the present invention is to provide a working room in the handhole lid and install the locking device to fasten the hand lid to the lid frame, reducing the components to improve the cost and productivity Its purpose is to provide a handhole with a locking function that is easy to operate, easy to maintain and easy to operate.

본 발명은 단부에 상향으로 돌출되게 걸림림부가 구비된 지지턱이 내주연을 따라 환형태로 구비되며, 상기 내주연에는 일측에 체결공이 형성되며 상기 체결공과 마주보게 결합공이 형성된 뚜껑틀과 상기 뚜껑틀의 지지턱에 걸림되게 체결되며, 상면 테두리에는 내측면에 작동실이 마련된 작동홀이 형성되고, 외면에는 상기 체결공에 끼움되도록 체결돌기가 형성된 핸드홀뚜껑과 상기 작동실에 설치되어, 상기 결합공에 체결되는 장금장치로 이루어진 것을 특징으로 한다.The present invention is provided with a support jaw is provided in the annular shape along the inner circumference, the engaging jaw is provided to protrude upward at the end, the inner frame is formed with a fastening hole on one side and the coupling frame formed to face the fastening hole and the lid It is fastened to the support jaw of the frame, the upper edge is formed in the operating chamber is provided with the operating chamber is provided on the inner surface, the outer surface is installed in the operating chamber and the hand hole lid formed with a fastening projection to be fitted to the fastening hole, It is characterized by consisting of a locking device fastened to the coupling hole.

또한, 상기 뚜껑틀에는 수밀을 유지하도록 상면에 설치홈을 갖는 수밀링이 상기 걸림림부를 감싸면서 설치되고, 상기 핸드홀뚜껑의 저면에는 상기 설치홈에 끼움되도록 끼움돌부가 더 형성된 것을 특징으로 한다.In addition, the lid frame is provided with a water-tight ring having an installation groove on the upper surface to maintain the watertightness is wrapped around the locking portion, the bottom surface of the handhole lid is characterized in that the fitting protrusion is further formed to fit in the installation groove. .

또한, 상기 장금장치는 상기 작동실에 배치되는 탄성스프링과 작동바로 이루어지며, 상기 작동바는 일단부에 상기 결합공에 끼움되는 설치돌기 및 상기 작동홈에 배치되는 작동돌기가 구비되고, 타단부에는 상기 탄성스프링을 지지하는 지지부가 형성되며, 상기 작동돌기와 상기 지지부 사이에는 상기 작동실을 따라 안내하는 안내부재가 형성되되, 상기 작동실의 하부에는 탈착가능하게 스토퍼가 설치되어, 상기 지지부가 걸림고정되게 하는 것을 특징으로 한다.
In addition, the locking device is made of an elastic spring disposed in the operating chamber and the operation bar, the operation bar is provided with an installation protrusion and a working protrusion disposed in the operating groove and the other end is fitted to the coupling hole at one end, The support portion for supporting the elastic spring is formed, a guide member for guiding along the operating chamber is formed between the operating projection and the support portion, the stopper is detachably installed at the lower portion of the operating chamber, the support portion is caught Characterized in that it is fixed.

본 발명인 잠금기능을 갖는 핸드홀은 핸드홀뚜껑에 작동실을 마련하고 장금장치을 설치하여 핸드뚜껑을 뚜껑틀에 체결함으로써, 구성요소를 줄어 원가 및 생산성을 향상시키고 유지보수가 용이하며 작동이 간편한 효과가 있다.
The present inventors have a handhole with a locking function by providing an operating chamber in the handhole lid and installing a locking device to fasten the hand lid to the lid frame, thereby reducing components and improving cost and productivity, easy maintenance, and simple operation. There is.

도 1은 종래의 잠금기능이 구비된 핸드홀을 나타낸 분해상태 사시도이다.
도 2는 본 발명에 따른 잠금기능을 갖는 핸드홀을 나타낸 사시도이다.
도 3은 본 발명에 따른 잠금기능을 갖는 핸드홀을 나타낸 분해사시도이다.
도 4는 본 발명에 따른 잠금기능을 갖는 핸드홀의 설치과정을 나타낸 단면도이다.
도 5는 본 발명에 따른 잠금기능을 갖는 핸드홀을 나타낸 단면도이다.1 is an exploded perspective view showing a conventional hand hole with a locking function.
2 is a perspective view showing a hand hole having a locking function according to the present invention.
3 is an exploded perspective view showing a handhole having a locking function according to the present invention.
Figure 4 is a cross-sectional view showing the installation process of the hand hole having a locking function according to the present invention.
5 is a cross-sectional view showing a handhole having a locking function according to the present invention.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 잠금기능을 갖는 핸드홀의 바람직한 실시예를 첨부된 도면을 참조하여 설명한다. 이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 고안에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of a handhole having a locking function according to the present invention with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

또한, 하기 실시예는 본 발명의 권리범위를 한정하는 것이 아니라 단지 예시로 제시하는 것이며, 본 기술 사상을 통해 구현되는 다양한 실시예가 있을 수 있다.In addition, the following examples are not intended to limit the scope of the present invention but merely presented by way of example, and there may be various embodiments implemented through the present invention.

도 2는 본 발명에 따른 잠금기능을 갖는 핸드홀을 나타낸 사시도이고, 도 3은 본 발명에 따른 잠금기능을 갖는 핸드홀을 나타낸 분해사시도이며, 도 4는 본 발명에 따른 잠금기능을 갖는 핸드홀의 설치과정을 나타낸 단면도이고, 도 5는 본 발명에 따른 잠금기능을 갖는 핸드홀을 나타낸 단면도이다.Figure 2 is a perspective view showing a hand hole having a locking function according to the present invention, Figure 3 is an exploded perspective view showing a hand hole having a locking function according to the present invention, Figure 4 is a hand hole having a locking function according to the present invention Figure 5 is a cross-sectional view showing the installation process, Figure 5 is a cross-sectional view showing a hand hole having a locking function according to the present invention.

도면에 도시된 바와 같이 본 발명인 잠금기능을 갖는 핸드홀(1)(이하 핸드홀)은 뚜껑틀(2)과 핸드홀뚜껑(3)과 장금장치(4)로 이루어진다.As shown in the figure, the hand hole 1 (hereinafter hand hole) having a locking function of the present invention includes a lid frame 2, a hand hole lid 3, and a locking device 4.

상기 뚜껑틀(2)은 금속재로 이루어진 원형 또는 사각의 틀로서, 상기 뚜껑틀(2)의 내주연에는 단부에 상향으로 돌출되게 걸림림부(21a)가 구비된 지지턱(21)이 환형태로 형성되며, 상기 내주연에는 일측에 체결공(22)이 형성되며 상기 체결공(22)과 마주보게 결합공(23)이 형성된다.The lid frame 2 is a round or square frame made of a metal material, the support jaw 21 is provided in the annular shape of the inner frame of the lid frame 2 is provided with a locking portion (21a) to protrude upward at the end The fastening hole 22 is formed at one side of the inner circumference, and the coupling hole 23 is formed to face the fastening hole 22.

또한, 상기 뚜껑틀(2)에는 수밀을 유지하도록 상면에 설치홈(51)을 갖는 수밀링(5)이 상기 걸림림부(21a)를 감싸면서 설치된다. 상기 수밀링(5)은 탄성을 갖는 합성수지재로 형성되어 상기 걸림림부(21a)에 끼움되며, 다르게는 상기 지지턱(21)의 상면에 접착고정시키는 것도 가능하다.In addition, the lid frame 2 is provided with a water-tight ring 5 having an installation groove 51 on the upper surface so as to maintain the watertight while surrounding the locking portion 21a. The water milling ring 5 is formed of a synthetic resin material having elasticity and fitted to the locking portion 21a. Alternatively, the water sealing ring 5 may be fixed to the upper surface of the support jaw 21.

상기 핸드홀뚜껑(3)은 금속 또는 합성수지재로 형성되어 상기 뚜껑틀(2)의 지지턱에 걸림되게 체결되며, 상면 테두리에는 내측면에 작동실(31a)이 마련된 작동홀(31)이 형성되고, 외면에는 상기 체결공(22)에 끼움되도록 체결돌기(32)가 형성된다.The hand hole lid (3) is formed of a metal or synthetic resin material is fastened to be locked to the support jaw of the lid frame (2), the upper edge is formed with an operating hole 31 is provided with an operating chamber (31a) on the inner side On the outer surface, a fastening protrusion 32 is formed to be fitted into the fastening hole 22.

이때, 상기 핸드홀뚜껑(3)의 저면에는 상기 수밀링(5)의 설치홈(51)에 끼움되도록 끼움돌부(33)가 더 형성된다.At this time, the fitting protrusion 33 is further formed on the bottom of the hand hole lid 3 so as to fit into the installation groove 51 of the water-tight ring 5.

상기 장금장치(4)는 상기 작동실(31a)에 설치된 후, 상기 결합공(23)에 체결되어, 상기 핸드홀뚜껑(3)을 상기 뚜껑틀(2)에 잠금 또는 잠금해제시키는 것으로서, 이에 이와 같은 장금장치(4)는 상기 작동실(31a)에 배치되는 탄성스프링(41)과 작동바(42)로 이루어지며, 상기 작동바(42)는 일단부에 상기 결합공(23)에 끼움되는 설치돌기(42a)가 형성됨과 아울러 상기 작동홈(31)에 배치되는 작동돌기(42b)가 상측에 돌출되게 형성되고, 타단부에는 상기 탄성스프링(41)을 지지하는 지지부(42c)가 형성되며, 상기 작동돌기(42b)와 상기 지지부(42c) 사이의 작동바(42)에는 상기 작동실(31a)을 따라 안내하는 안내부재(42d)가 형성되되, 상기 작동실(31a)의 하부에는 탈착가능하게 스토퍼(31a')가 설치되어, 상기 지지부(42c)가 걸림고정된다.The locking device 4 is installed in the operating chamber 31a and then fastened to the coupling hole 23 to lock or unlock the handhole lid 3 to the lid frame 2. Such a locking device 4 is composed of an elastic spring 41 and the operation bar 42 disposed in the operation chamber 31a, the operation bar 42 is fitted into the coupling hole 23 at one end. In addition, the installation protrusion 42a is formed, and the operation protrusion 42b disposed in the operation groove 31 is formed to protrude upward, and at the other end, a support portion 42c for supporting the elastic spring 41 is formed. A guide member 42d for guiding along the operating chamber 31a is formed in the operating bar 42 between the operating protrusion 42b and the support 42c, and is provided below the operating chamber 31a. The stopper 31a 'is detachably attached, and the support part 42c is locked.

즉, 상기 작동실(31a)에 탄성스프링(41)을 끼운 다음 장금장치(4)를 끼우게 되는데, 상기 작동실(31a)에 스토퍼(31a')를 끼워 지지부(42c)가 걸림되게 함으로써, 잠금장치(4)의 설치를 완료하게 된다. 이때, 상기 스토퍼(31a')는 상기 작동실(31a)의 하부에 형성된 끼움공에 설치되는 통상 헤드가 없는 볼트로서, 상기 끼움공에는 내측으로 단부가 돌출되게 핀을 억지시키는 것도 가능하다.That is, the elastic spring 41 is inserted into the operating chamber 31a, and then the locking device 4 is inserted. The stopper 31a 'is fitted into the operating chamber 31a to lock the support 42c. The installation of the locking device 4 is completed. At this time, the stopper 31a 'is a bolt without a normal head installed in the fitting hole formed in the lower portion of the operation chamber 31a, and it is also possible to suppress the pin so that the end portion protrudes in the fitting hole.

이후, 작업자가 핸드홀 뚜껑(3)을 파지하여 뚜껑틀(2)의 체결공(22)에 체결돌기(32)를 끼우게 되고, 작동돌기(42b)를 탄성스프링(41) 방향으로 가압하여 잠금장치(4)를 작동실(31a)의 내측으로 이동시킨 다음 가압을 해제하면 가압에 의해 압축된 탄성스프링(41)의 복원력에 의해 작동바(42)의 설치돌기(42a)가 상기 결합공(23)에 끼워져, 상기 뚜껑틀(2)에 상기 핸드홀 뚜껑(3)이 잠겨지게 된다.
Thereafter, the worker grips the handhole lid 3 to insert the fastening protrusion 32 into the fastening hole 22 of the lid frame 2, and presses the operating protrusion 42b in the direction of the elastic spring 41. When the locking device 4 is moved to the inside of the operation chamber 31a and the pressure is released, the installation protrusion 42a of the operation bar 42 is moved by the restoring force of the elastic spring 41 compressed by the pressure. The handhole lid 3 is locked to the lid frame 2 so as to fit in the lid 23.

1 : 핸드홀 2 : 뚜껑틀
3 : 핸드홀 뚜껑 4 : 장금장치
5 : 수밀링 21 : 지지턱
21a : 걸림림부 22 : 체결공
23 : 결합공 31 : 작동홀
31a : 작동실 31a' : 스토퍼
32 : 체결돌기 33 : 끼움돌기
41 : 탄성스프링 42 : 작동바
42a : 설치돌기 42b : 작동돌기
42c : 지지부 42d : 안내부재
51 : 설치홈1: handhole 2: lid frame
3: handhole cover 4: locking device
5: water milling 21: support jaw
21a: locking portion 22: fastening hole
23: coupling hole 31: operating hole
31a: operating chamber 31a ': stopper
32: fastening protrusion 33: fitting protrusion
41: elastic spring 42: operating bar
42a: installation protrusion 42b: operation protrusion
42c: support portion 42d: guide member
51: installation groove

Claims (3)

삭제delete 삭제delete 단부에 상향으로 돌출되게 걸림림부가 구비된 지지턱이 내주연을 따라 환형태로 구비되며, 상기 내주연에는 일측에 체결공이 형성되며 상기 체결공과 마주보게 결합공이 형성된 뚜껑틀과, 상기 뚜껑틀의 지지턱에 걸림되게 체결되며, 상면 테두리에는 내측면에 작동실이 마련된 작동홀이 형성되고, 외면에는 상기 체결공에 끼움되도록 체결돌기가 형성된 핸드홀뚜껑과, 상기 작동실에 설치되어, 상기 결합공에 체결되는 장금장치로 이루어진 핸드홀로서,
상기 장금장치는 상기 작동실에 배치되는 탄성스프링과 작동바로 이루어지며, 상기 작동바는 일단부에 상기 결합공에 끼움되는 설치돌기 및 상기 작동홈에 배치되는 작동돌기가 구비되고, 타단부에는 상기 탄성스프링을 지지하는 지지부가 형성되며, 상기 작동돌기와 상기 지지부 사이에는 상기 작동실을 따라 안내하는 안내부재가 형성되되, 상기 작동실의 하부에는 탈착가능하게 스토퍼가 설치되어, 상기 지지부가 걸림고정되게 하는 것을 특징으로 하는 잠금기능을 갖는 핸드홀.

A support jaw provided with a locking portion to protrude upwardly at an end is provided in an annular shape along an inner circumference, and a fastening hole is formed at one side of the inner circumference and a coupling frame is formed to face the fastening hole and the lid frame. It is fastened to the support jaw, the upper edge is formed in the operating hole is provided with the operating chamber on the inner surface, the outer surface is provided with a handhole lid formed with a fastening protrusion to fit into the fastening hole, the operating chamber is installed, the coupling A handhole made of a locking device fastened to the ball,
The locking device includes an elastic spring disposed in the operation chamber and an operation bar. The operation bar includes an installation protrusion fitted to the coupling hole at one end and an operation protrusion disposed at the operation groove, and the other end of the operation bar. A support portion for supporting the elastic spring is formed, and a guide member for guiding along the operation chamber is formed between the operation protrusion and the support portion, and a stopper is detachably installed at the lower portion of the operation chamber so that the support portion is locked. Handhole having a locking function, characterized in that.

KR1020100015949A 2010-02-23 2010-02-23 Locking apparatus for handhole KR100980362B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044466U (en) * 1973-08-18 1975-05-06
JPS5616659U (en) 1979-07-17 1981-02-13
JP2003328379A (en) * 2002-05-09 2003-11-19 Yodo Casting:Kk Manhole cover structure
KR100731682B1 (en) 2007-03-09 2007-06-22 (주)한국주조 Manhole which lock means possesses

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044466U (en) * 1973-08-18 1975-05-06
JPS5616659U (en) 1979-07-17 1981-02-13
JP2003328379A (en) * 2002-05-09 2003-11-19 Yodo Casting:Kk Manhole cover structure
KR100731682B1 (en) 2007-03-09 2007-06-22 (주)한국주조 Manhole which lock means possesses

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