KR200373078Y1 - a coupling of hydraulic hose to open and close a gate of laddle - Google Patents
a coupling of hydraulic hose to open and close a gate of laddle Download PDFInfo
- Publication number
- KR200373078Y1 KR200373078Y1 KR20-2004-0028850U KR20040028850U KR200373078Y1 KR 200373078 Y1 KR200373078 Y1 KR 200373078Y1 KR 20040028850 U KR20040028850 U KR 20040028850U KR 200373078 Y1 KR200373078 Y1 KR 200373078Y1
- Authority
- KR
- South Korea
- Prior art keywords
- coupling
- ladle
- coupling member
- hydraulic hose
- locking member
- Prior art date
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 77
- 238000010168 coupling process Methods 0.000 title claims abstract description 77
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 77
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000000452 restraining effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 5
- 238000005266 casting Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/58—Pouring-nozzles with gas injecting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
본 고안은 래들 마개 개폐용 유압호스의 커플링에 관한 것으로서, 래들에는 그 출탕구를 막는 마개를 개폐하도록 유압을 공급하는 유압호스가 구비되고, 상기 유압호스에는 래들의 교체시 착탈시키는 숫 커플링부재와 암 커플링부재가 결합된 커플링에 있어서, 상기 커플링(50)에는 상기 숫 커플링부재(52)와 암 커플링부재(54)를 구속 또는 해제하는 로킹부재(56)가 커플링의 길이방향으로 이동가능케 결합되되, 상기 로킹부재의 외주면에는 로킹부재를 용이하게 이동시키도록 손잡이(60)가 고정되어 있으므로, 숫 커플링부재와 암 커플링부재를 분리 또는 결합할 시에 안전하고 간단히 작업할 수 있다는 효과가 있다.The present invention relates to a coupling of the hydraulic hose for opening and closing the ladle plug, the ladle is provided with a hydraulic hose for supplying a hydraulic pressure to open and close the stopper to block the tap opening, the hydraulic hose is a male coupling to be detached when replacing the ladle In the coupling in which the member and the female coupling member are coupled, the coupling 50 includes a locking member 56 for restraining or releasing the male coupling member 52 and the female coupling member 54. Is coupled to move in the longitudinal direction of the locking member on the outer circumferential surface of the locking member so as to easily move the locking member is fixed, so it is safe when separating or coupling the male coupling member and the female coupling member The effect is simple to work with.
Description
본 고안은 래들 마개 개폐용 유압호스의 커플링에 관한 것이다.The present invention relates to a coupling of the ladle stopper opening and closing hydraulic hose.
일반적으로 주조공정에서는 용탕을 받아 몰드에 주입하기 위한 용기인 래들(laddle)을 사용하게 된다. 상기 래들은 전기로에서 용해된 용탕을 받아 대차에 이동되어 몰드의 상측에서 용탕을 출탕시키게 된다.In general, a casting process uses a ladle, a container for receiving molten metal and injecting the molten metal into a mold. The ladle receives the molten molten metal in the electric furnace and is moved to the trolley to tap the molten metal from the upper side of the mold.
상기 래들(10)은 도1에 도시한 바와 같이, 본체(12)의 상부에는 용탕 표면으로 산화 방지용 불활성 가스를 직접 공급하기 위한 배관을 구비한 실링용 커버(14)가 설치되고, 본체(12)의 하부에는 출탕구를 막는 마개(도시안됨)를 개폐하는 유압실린더를 포함하는 유압작동기구(15)가 설치되어 있다. 그리고, 본체(12)에는 상기 유압작동기구(15)의 유압실린더에 유압을 공급하기 위한 래들측 호스(16, 18)가 설치되어 있다.As shown in FIG. 1, the ladle 10 is provided with a sealing cover 14 having a pipe for directly supplying an inert gas for oxidation prevention to a molten surface at an upper portion of the main body 12, and the main body 12. The lower part of the) is provided with a hydraulic actuating mechanism 15 including a hydraulic cylinder for opening and closing a stopper (not shown) for blocking the tap. The main body 12 is provided with ladle side hoses 16 and 18 for supplying hydraulic pressure to the hydraulic cylinder of the hydraulic actuating mechanism 15.
상기 래들측 유압호스(18)은 래들의 교체시에 분리하도록 커플링(20)을 매개로 유압 공급측 호스(19)에 연결되어 있다.The ladle side hydraulic hose 18 is connected to the hydraulic supply side hose 19 via the coupling 20 so as to separate when the ladle is replaced.
도2에 도시한 바와 같이, 상기 커플링(20)은 상기 래들측 호스(18)에 연결되는 숫 커플링부재(22)와, 상기 유압 공급측 호스(19)에 연결되어 상기 숫 커플링부재와 착탈가능케 결합되는 암 커플링 부재(24)로 이루어진다. 상기 숫 커플링부재(22)의 단부 외면에는 리세스 원주홈(22a)이 형성되고, 상기 암 커플링 부재(24)의 수용구멍(24a)에는 상기 리세스 원주홈(22a)에 걸리는 볼(25)이 결합되어 있다. 그리고, 상기 암 커플링 부재(24)의 외주면에는 상기 숫 커플링부재(22)를 착탈할 시에 상기 볼(25)을 구속 또는 해제하는 로킹부재(26)가 암 커플링부재(24)의 단부를 향하여 가압되게 도시하지 않은 스프링을 매개로 결합되어 있다.As shown in Fig. 2, the coupling 20 is connected to the male coupling member 22 connected to the ladle side hose 18 and the hydraulic supply side hose 19 to connect the male coupling member. It consists of a female coupling member 24 detachably coupled. A recess circumferential groove 22a is formed at an outer surface of the end of the male coupling member 22, and a ball caught by the recess circumferential groove 22a is formed at the receiving hole 24a of the female coupling member 24. 25) is combined. The outer circumferential surface of the female coupling member 24 includes a locking member 26 for restraining or releasing the ball 25 when the male coupling member 22 is detached from the female coupling member 24. It is coupled via a spring, not shown, to be pressed toward the end.
상기 로킹부재(26)의 외면에는 손으로 잡을 시에 미끄러지지 않도록 요철이 형성되어 있는데, 상기 숫 커플링부재(22)와 암 커플링부재(24)를 결합할 경우에는 상기 로킹부재(26)를 손으로 잡고 후퇴시킨 후, 상기 숫 커플링부재(22)의 단부를 상기 암 커플링부재(24)의 수용구멍(24a)에 끼운 다음, 로킹부재(26)를 놓으면, 로킹부재(26)가 상기 볼(25)을 구속하게 되어 암 커플링부재(24)가 빠지지 않게 된다.Unevenness is formed on the outer surface of the locking member 26 so as not to slip when held by a hand. When the male coupling member 22 and the female coupling member 24 are coupled to each other, the locking member 26 is closed. After retracting by hand, the end of the male coupling member 22 is inserted into the receiving hole 24a of the female coupling member 24, and then the locking member 26 is released. The ball 25 is restrained so that the female coupling member 24 does not fall out.
상기 숫 커플링부재(22)와 암 커플링부재(24)를 분리할 경우에는 상기 로킹부재(26)를 손으로 잡고 후퇴시킨 후 당기면, 상기 숫 커플링부재(22)와 암 커플링부재(24)가 간단히 분리된다.When the male coupling member 22 and the female coupling member 24 are separated, the locking member 26 is pulled back by pulling the locking member 26 by hand, and the male coupling member 22 and the female coupling member ( 24 is simply separated.
그런데, 래들을 교체하기 위해 상기 숫 커플링 부재(22)와 암 커플링 부재(24)를 착탈할 경우에, 사용자가 손으로 로킹부재(26)를 잡고 당겨야 하므로 고온의 래들(10)로 인해 위험할 뿐만 아니라 분리시에 유압이 새면서 화상을 입을 우려가 있다는 문제점이 있었다.However, when the male coupling member 22 and the female coupling member 24 are detached to replace the ladle, since the user has to pull the locking member 26 by hand, the ladle 10 is hot. Not only was it dangerous, there was a problem that there is a risk of burns while the hydraulic leaks.
따라서, 본 고안은 상기 문제점을 해결하기 위해 이루어진 것으로서, 본 고안의 목적은 숫 커플링부재와 암 커플링부재를 분리 또는 결합할 시에 안전하고 간단히 작업할 수 있는 래들 마개 개폐용 유압호스의 커플링을 제공하는 데 있다.Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is a couple of ladle plug opening and closing hydraulic hose that can safely and simply work when separating or combining the male coupling member and the female coupling member. To provide the ring.
도1은 주조공정에서 용탕을 받아 몰드에 주입하기 위한 용기인 래들을 나타내는 입면도,1 is an elevation view showing a ladle which is a container for receiving molten metal in a casting process and injecting it into a mold;
도2는 종래 래들의 마개를 개폐하는 유압호스에 결합되는 커플링의 분리사시도,Figure 2 is an exploded perspective view of the coupling coupled to the hydraulic hose for opening and closing the stopper of the conventional ladle,
도3은 본 고안에 의한 래들 마개 개폐용 유압호스의 커플링을 나타내는 분리사시도이다.Figure 3 is an exploded perspective view showing the coupling of the ladle plug opening and closing hydraulic hose according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
50 : 커플링 52 : 숫 커플링부재50: coupling 52: male coupling member
54 : 암 커플링부재 56 : 로킹부재54: female coupling member 56: locking member
60 : 손잡이 62, 62' : 커버부재60: handle 62, 62 ': cover member
64, 64' : 로드64, 64 ': load
상기 목적을 달성하기 위한 본 고안은, 래들에는 그 출탕구를 막는 마개를 개폐하도록 유압을 공급하는 유압호스가 구비되고, 상기 유압호스에는 래들의 교체시 착탈시키는 숫 커플링부재와 암 커플링부재가 결합된 커플링에 있어서, 상기 커플링에는 상기 숫 커플링 부재와 암 커플링 부재를 구속 또는 해제하는 로킹부재가 커플링의 길이방향으로 이동가능케 결합되되, 상기 로킹부재의 외주면에는 로킹부재를 용이하게 이동시키도록 손잡이가 고정되어 있는 것을 특징으로 한다.The present invention for achieving the above object, the ladle is provided with a hydraulic hose for supplying a hydraulic pressure to open and close the stopper to block the spout, the hydraulic hose is a male coupling member and a female coupling member detachable when replacing the ladle. In the coupling coupled to the coupling, the locking member for restraining or releasing the male coupling member and the female coupling member is coupled to the coupling so as to move in the longitudinal direction of the coupling, the locking member on the outer peripheral surface of the locking member It is characterized in that the handle is fixed to move easily.
상기 손잡이는, 상기 로킹부재의 외주면에 밀착하여 서로 체결되는 두 개의 커버부재와, 상기 각 커버부재의 외주면에 일단이 고정되고 타단이 서로 체결되는 두 개의 로드로 이루어진다.The handle is composed of two cover members which are in close contact with the outer circumferential surface of the locking member and fastened to each other, and two rods whose one end is fixed to the outer circumferential surface of each cover member and the other end are fastened to each other.
이하, 첨부된 도면을 참조하여 본 고안의 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;
도3에 도시한 바와 같이 본 고안에 의한 커플링(50)은, 래들측 호스(18)에 연결되는 숫 커플링부재(52)와, 상기 유압 공급측 호스(19)에 연결되어 상기 숫 커플링부재와 착탈가능케 결합되는 암 커플링 부재(54)로 이루어지고, 상기 숫 커플링부재(52)의 단부 외면에는 리세스 원주홈(52a)이 형성되고, 상기 암 커플링 부재(54)의 수용구멍(54a)에는 상기 리세스 원주홈(52a)에 걸리는 볼(55)이 결합되어 있다. 그리고, 상기 암 커플링 부재(54)의 외주면에는 상기 숫 커플링부재(52)를 착탈할 시에 상기 볼(55)을 구속 또는 해제하는 로킹부재(56)가 암 커플링부재(54)의 단부를 향하여 가압되게 도시하지 않은 스프링을 매개로 결합되고, 상기 로킹부재(56)의 외주면에는 로킹부재를 용이하게 이동시키도록 손잡이(60)가 밀착하여 고정되어 있다.As shown in FIG. 3, the coupling 50 according to the present invention includes a male coupling member 52 connected to a ladle side hose 18 and a hydraulic coupling side hose 19 connected to the male coupling. A female coupling member 54 detachably coupled to the member, and a recess circumferential groove 52a is formed at an outer surface of the end portion of the male coupling member 52 to accommodate the female coupling member 54. The hole 55a is engaged with the ball 55 caught in the recess circumferential groove 52a. The outer circumferential surface of the female coupling member 54 includes a locking member 56 for restraining or releasing the ball 55 when the male coupling member 52 is attached or detached from the female coupling member 54. It is coupled via a spring (not shown) to be pressed toward the end, and the handle 60 is tightly fixed to the outer circumferential surface of the locking member 56 so as to easily move the locking member.
상기 손잡이(60)는, 상기 로킹부재(56)의 외주면에 밀착하여 서로 체결되는 두 개의 커버부재(62, 62')와, 상기 각 커버부재(62, 62')의 외주면에 일단이 고정되고 타단이 서로 체결되는 두 개의 로드(64, 64')로 이루어진다. 상기 로킹부재(56)의 외면에는 상기 커버부재(62, 62')가 미끄러지지 않도록 요철이 형성되어 있다.The handle 60 has two cover members 62 and 62 'which are in close contact with the outer circumferential surface of the locking member 56 and one end is fixed to the outer circumferential surfaces of the cover members 62 and 62'. The other end consists of two rods 64 and 64 'which are fastened to each other. Unevenness is formed on the outer surface of the locking member 56 so that the cover members 62 and 62 'do not slip.
상기 커버부재(62, 62')는, 반원통의 원주방향 양단부 중앙에 플랜지(62a, 62'a)가 형성되고, 상기 플랜지(62a, 62'a)는 볼트 및 너트로 된 체결부재(66)에 의해 체결되어 상기 커버부재(62, 62')에 고정된다. 상기 커버부재(62, 62')의 외면 중간에는 후술하는 로드가 용착되는 돌출부(62b)가 형성되어 있다.The cover members 62 and 62 'are formed with flanges 62a and 62'a at the centers of both circumferential ends of the semi-cylinder, and the flanges 62a and 62'a are fastening members 66 made of bolts and nuts. And are fixed to the cover members 62 and 62 '. In the middle of the outer surface of the cover members 62 and 62 ', a protrusion 62b to which a rod described later is welded is formed.
상기 로드(64, 64')는, 그 일단은 상기 커버부재(62, 62')의 돌출부(62b)에 용접으로 고정되고, 그 타단에는 플랜지(64a, 64'a)가 형성되어 이 플랜지(64a, 64'a)가 볼트 및 너트로 된 체결부재(68)에 의해 체결된 구조이다. 상기 로드(64, 64')는 상기 돌출부(62b)에서 상기 유압 공급측 호스(19) 방향으로 연장된 후 커플링(50)의 반경방향으로 연장되어 상기 체결부재(68)에 의해 이어지게 되어 있다.One end of the rods 64 and 64 'is fixed by welding to the protrusion 62b of the cover members 62 and 62', and the other end thereof is formed with flanges 64a and 64'a. 64a and 64'a are fastened by fastening members 68 made of bolts and nuts. The rods 64 and 64 'extend in the direction of the hydraulic supply side hose 19 from the protrusion 62b and then extend in the radial direction of the coupling 50 to be connected by the fastening member 68.
상기 손잡이(60)는 상기 로킹부재(56)의 외주면에 직접 용착되는 로드로 이루어질 수도 있다.The handle 60 may be formed of a rod which is directly welded to the outer circumferential surface of the locking member 56.
이와 같이 구성된 본 고안에 의한 래들 마개 개폐용 유압호스의 커플링에서, 커플링의 숫 커플링부재(52)와 암 커플링부재(54)를 분리하거나 연결할 경우에, 손으로 손잡이(60)의 로드(64, 64')를 잡고 당겨 로킹부재(56)를 이동시켜 커플링(50)을 착탈시킬 수 있게 되므로, 고온의 래들 또는 분리시의 유압으로 인한 화상 등의 안전사고를 방지할 수 있게 된다.In the coupling of the hydraulic hose for ladle plug opening and closing according to the present invention configured as described above, in the case of separating or connecting the male coupling member 52 and the female coupling member 54 of the coupling, the hand of the handle 60 Since the coupling 50 can be detached by moving the locking member 56 by pulling and pulling the rods 64 and 64 ', it is possible to prevent safety accidents such as burns due to high temperature ladle or hydraulic pressure during separation. do.
본 고안에 의한 래들 마개 개폐용 유압호스의 커플링에 의하면, 숫 커플링부재와 암 커플링부재를 분리 또는 결합할 시에 안전하고 간단히 작업할 수 있다는 효과가 있다.According to the coupling of the ladle plug opening and closing hydraulic hose according to the present invention, there is an effect that can be safely and simply work when separating or coupling the male coupling member and the female coupling member.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0028850U KR200373078Y1 (en) | 2004-10-12 | 2004-10-12 | a coupling of hydraulic hose to open and close a gate of laddle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0028850U KR200373078Y1 (en) | 2004-10-12 | 2004-10-12 | a coupling of hydraulic hose to open and close a gate of laddle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR200373078Y1 true KR200373078Y1 (en) | 2005-01-15 |
Family
ID=49444506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20-2004-0028850U KR200373078Y1 (en) | 2004-10-12 | 2004-10-12 | a coupling of hydraulic hose to open and close a gate of laddle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200373078Y1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100774845B1 (en) | 2006-07-24 | 2007-11-07 | 주식회사 포스코 | Quick coupler for interception of impurities |
| KR20190052527A (en) * | 2017-11-08 | 2019-05-16 | 주식회사 포스코 | Apparatus for coupling and apparatus for processing molten material using the same |
-
2004
- 2004-10-12 KR KR20-2004-0028850U patent/KR200373078Y1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100774845B1 (en) | 2006-07-24 | 2007-11-07 | 주식회사 포스코 | Quick coupler for interception of impurities |
| KR20190052527A (en) * | 2017-11-08 | 2019-05-16 | 주식회사 포스코 | Apparatus for coupling and apparatus for processing molten material using the same |
| KR101998767B1 (en) * | 2017-11-08 | 2019-07-10 | 주식회사 포스코 | Apparatus for coupling and apparatus for processing molten material using the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6035894A (en) | Coupling device for rapid connection | |
| KR100877545B1 (en) | Quick connect coupling | |
| US20110017318A1 (en) | Fluid Filling and/or Extracting Connector and Assembly Comprising a Connector and a Tap | |
| AU2020383290B2 (en) | Sealing structure | |
| JP4896070B2 (en) | Female joint member and male joint member | |
| JPH02146398A (en) | Quickly detachable hose joint device and manufacture thereof | |
| KR200373078Y1 (en) | a coupling of hydraulic hose to open and close a gate of laddle | |
| EP0013623B1 (en) | Pipe coupling | |
| US5026099A (en) | Dry break coupler with ring collar sleeve operator | |
| RU2351831C2 (en) | Compressed gas tank with adapter for joining it with connecting apparatus, connected to user, distributor or filling station, particularly for respiratory apparatus with compressed gas | |
| CA2461826C (en) | Pipe coupler | |
| JP6504469B2 (en) | Depressurizer | |
| EP4102123A1 (en) | Safety tank truck coupling | |
| US5996654A (en) | Quick-connect filling device for transferring fluids to a valve | |
| KR20100050850A (en) | Hydraulic connecting device of ladle sliding gate | |
| US11679288B2 (en) | Warning device for dangerous situations | |
| ITTO970900A1 (en) | TAKE-OFF BODY FOR A QUICK-RELEASE SAFETY COUPLING. | |
| ITMI990475A1 (en) | SUPPORT FOR LANCES WITH MULTIFUNCTIONAL TIGHTENING HEAD | |
| KR101998767B1 (en) | Apparatus for coupling and apparatus for processing molten material using the same | |
| KR20130107901A (en) | Manhole cover lifter | |
| NO327971B1 (en) | Device by ceiling hook | |
| JP2531326Y2 (en) | Door locking device in pipeline | |
| WO2011052069A1 (en) | Female pipe joint | |
| JP4339481B2 (en) | Tension lock bar | |
| EP3507533B1 (en) | Safety cam lock fitting and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 20111226 Year of fee payment: 8 |
|
| LAPS | Lapse due to unpaid annual fee |