WO2024063244A1 - Raccord de construction modulaire à accouplement sans fixation - Google Patents

Raccord de construction modulaire à accouplement sans fixation Download PDF

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Publication number
WO2024063244A1
WO2024063244A1 PCT/KR2023/007273 KR2023007273W WO2024063244A1 WO 2024063244 A1 WO2024063244 A1 WO 2024063244A1 KR 2023007273 W KR2023007273 W KR 2023007273W WO 2024063244 A1 WO2024063244 A1 WO 2024063244A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
fixing members
cap
fastening
connector
Prior art date
Application number
PCT/KR2023/007273
Other languages
English (en)
Korean (ko)
Inventor
박종건
조경환
신명규
강현우
Original Assignee
지에스건설 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 지에스건설 주식회사 filed Critical 지에스건설 주식회사
Publication of WO2024063244A1 publication Critical patent/WO2024063244A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • 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
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action

Definitions

  • the present invention relates to a modular building connector that is coupled without fastening.
  • Connectors can secure rebar, pipes, bolts, pins, etc. inserted inside.
  • a connector may be used when it is necessary to connect a plurality of reinforcing bars or when connecting a plurality of pipes that require watertightness.
  • the ribs of the rebar engage with the protrusions of the fixture, and the fixture is pressed by an elastic member such as a spring, so that the rebar can be fixed to the connector.
  • the reinforcing bar can be fixed simply by inserting the reinforcing bar into the connector.
  • One embodiment of the present invention was invented with the above background in mind, and can optionally fix the insert by preventing the insert from being arbitrarily separated from the insert fixture, or allow the insert to be separated from the insert fixture when necessary.
  • a modular building connector that is coupled without fastening includes a body unit including a connector body formed so that the cross-sectional area of the inner peripheral surface decreases toward one side; One or more fixing members disposed inside the connector body, having an outer peripheral surface corresponding to an inner peripheral surface of the connector body, and arranged to form an insertion space therein; and an insert that is inserted into the insertion space by moving from one side of the connector body to the other side opposite the one side and engages the inner peripheral surface of the fixing member, wherein the one or more fixing members are configured to allow the insert to be inserted by a predetermined length.
  • a modular building connector that is coupled without fastening includes a cap supporting one or more fixing members; And it may further include an elastic member that provides elastic force to press the cap toward the one side in a direction in which the one or more fixing members move toward the one side.
  • a fastening groove is formed on the inner peripheral surface of one or more fixing members, and the cap can support the fixing member by inserting an outer edge of the cap into the fastening groove.
  • a space is provided between one or more fixing members, and a locking portion may be formed on one side of the cap that protrudes into the space and catches on one side of the fixing member.
  • cap threads may be formed on the cap.
  • the modular building connector coupled without fastening further includes a remover shaft having a shaft thread engaged with the cap screw thread, and when the insert is inserted into the insertion space by a predetermined length, the remover shaft is rotated in one direction or the other When moved to the side, the one or more fixing members supported by the cap are moved to the other side and the distance between them increases to allow movement of the insert to the one side.
  • an insert fastening portion is formed on the insert, and a plurality of protrusions that engage the insert fastening portion are formed on the inner peripheral surface of the fixing member, and at least one protrusion of the protrusion has a cross-sectional area in a direction perpendicular to the protruding direction that increases as the protruding direction increases. It may have a decreasing shape.
  • the protrusion has an inclined surface formed along the protruding direction, and the inclined surface may be inclined at an angle of 40 to 50 degrees from an axis extending in the protruding direction.
  • the body unit further includes a head detachably coupled to the connector body, and the head may support the other side of the elastic member.
  • a through hole through which the remover shaft passes may be formed in the head to support the remover shaft.
  • the one or more fixing members include a plurality of fixing members, and the plurality of fixing members include a first fixing member, a second fixing member, a third fixing member, and a fourth fixing member arranged at a predetermined distance from each other. may include.
  • the one or more fixing members include a plurality of fixing members, a fastening groove is formed on an inner peripheral surface of the plurality of fixing members, and the cap has an outer edge of the cap inserted into the fastening groove to secure the plurality of fixing members.
  • the plurality of fixing members may be supported to prevent each of the plurality of fixing members from being separated from the one side or the other side.
  • One embodiment of the present invention selectively blocks movement from the insert fixture to one side of the insert to secure the insert to the insert fixture, or allows movement from the insert fixture to one side of the insert to separate the insert from the insert fixture. You can.
  • the insert when a plurality of fixing members pressurize the insert, the insert is prevented from moving to one side from the insert fixture and can be strongly fixed to the insert fixture.
  • the remover shaft is rotated in one direction, the engagement between the plurality of fixing members and the insert is released, allowing the insert to move from the insert fixture to one side, so that the insert can be separated from the insert fixture.
  • FIG. 1 is a perspective view of a connector.
  • Figure 2 is an exploded perspective view of the connector.
  • Figure 3 is a cross-sectional view showing the state before the insert is inserted into the insert fixture of the connector.
  • Figure 4 is a cross-sectional view showing the insert being inserted into the insert fixture of the connector.
  • Figure 5 is a cross-sectional view showing the insert being separated from the insert fixture of the connector.
  • Figure 6 is a cross-sectional view of the body unit of the connector.
  • Figure 7 is a diagram showing a state in which the connector's fixing member, cap, and remover shaft are combined.
  • Figure 8 is a view showing a state in which the connector's fixing member, cap, and remover shaft are separated.
  • Figures 9 and 10 are views of the fixing member of the connector.
  • Figure 11 is a perspective view of an insert on which insert threads are formed.
  • Figure 12 is a perspective view of the insert on which the insert protrusion is formed.
  • the first direction refers to the vertical direction in the drawing
  • the second direction refers to the horizontal direction that is different from the first direction.
  • one side refers to the lower side in the drawing
  • the other side refers to the upper side in the drawing.
  • a modular building connector 1 that is coupled without fastening may be provided.
  • Modular buildings are constructed by connecting multiple assemblies, so that building units pre-manufactured in a factory several kilometers to hundreds of kilometers away from the construction site can be constructed by connecting them to each other at the construction site.
  • the first frame assembly included in the upper floor and the second frame assembly included in the lower floor are each manufactured in a factory that manufactures building units, and the manufactured first frame assembly After the and second frame assemblies are transported to the construction site, the first frame assembly and the second frame assembly are connected to each other at the construction site, so that the upper floor structure and the lower floor structure can be quickly and easily connected at the site.
  • a plurality of building units included in a modular building can be efficiently manufactured in a factory that manufactures building units.
  • the connector 1 may include an insert 20 and an insert fixture 10 capable of fixing the insert 20.
  • the insert 20 can be inserted into the insert fixture 10 and fixed without being arbitrarily separated.
  • This insert fixture 10 may include a body unit 100, a fixing member 200, a cap 300, an elastic member 400, and a remover shaft 500.
  • the body unit 100 may provide a predetermined accommodation space to support the fixing member 200 and the elastic member 400. Additionally, the body unit 100 may surround the insert 20 when the insert 20 is inserted into the insert fixture 10. This body unit 100 may include a connector body 110 and a head 120.
  • the connector body 110 may surround or support the fixing member 200 within it so that the fixing member 200 can move a predetermined distance.
  • the connector body 110 may be formed so that the cross-sectional area of the inner peripheral surface decreases toward one side (lower side in the drawing).
  • the other side (upper side in the drawing) of the inner peripheral surface of the connector body 110 may have a constant cross-sectional area, and one side of the inner peripheral surface may be formed so that the cross-sectional area decreases toward one end.
  • the outer peripheral surface of the fixing member 200 may contact the inner peripheral surface of the connector body 110, which is formed to reduce the cross-sectional area.
  • the connector body 110 may have a head 120 detachably fastened to the upper portion.
  • a body screw thread 111 may be formed on the inner peripheral surface of the other side of the connector body 110, and a head screw thread 122 of the head 120, which will be described later, may be engaged with this body screw thread 111.
  • the head 120 may be detachably fastened to the upper part of the connector body 110.
  • head screw threads 122 may be formed on the head 120 to engage with body screw threads 111 of the connector body 110.
  • the other side of the elastic member 400 may be supported on one side of the head 120.
  • a through hole 121 through which the remover shaft 500 can pass may be formed in the head 120 to support the remover shaft 500 (see FIG. 6).
  • the fixing member 200 may prevent the insert 20 from moving to one side with respect to the body unit 100 by pressing the insert 20 .
  • a plurality of fixing members 200 may be provided, and the plurality of fixing members 200 may be arranged to form an insertion space S into which the insert 20 can be inserted.
  • the plurality of fixing members 200 may be spaced apart from each other at a predetermined distance so that the insertion space S can be formed.
  • the insert 20 may be inserted into the insertion space S formed by the plurality of fixing members 200 and engaged with a protrusion 220 or a threaded portion 230, which will be described later, formed on the inner peripheral surface of the fixing member 200.
  • These plurality of fixing members 200 are disposed inside the connector body 110 and can be moved a predetermined distance in the vertical direction.
  • the fixing member 200 may have an outer circumferential surface corresponding to an inner circumferential surface of the connector body 110.
  • the outer peripheral surface of the fixing member 200 may be formed so that the cross-sectional area of the inner peripheral surface decreases toward one side to correspond to the inner peripheral surface of the connector body 110.
  • the outer peripheral surface of the fixing member 200, whose cross-sectional area is formed to decrease toward one side, may contact the outer peripheral surface of the connector body 110, which is formed to have a decreased cross-sectional area.
  • the outer peripheral surface of the fixing member 200 comes into contact with the inner peripheral surface of the connector body 110 when an external force is applied in a direction in which the insert 20 moves to one side while the insert 20 is inserted into the insertion space S by a predetermined length.
  • the plurality of fixing members 200 can maintain the relative position between the insert 20 and the fixing member 200 by pressing the insert 20 in the center direction of the insert 20 while reducing the distance between them.
  • the insert 20 can be strongly fixed to the fixing member 200.
  • a fastening groove 210 and a protrusion 220 may be formed in the fixing member 200.
  • the fastening groove 210 may be formed on the other inner peripheral surface of the plurality of fixing members 200.
  • the outer edge of the cap 300 is inserted into this fastening groove 210, so that the plurality of fixing members 200 can be supported by the cap 300. Additionally, the outer edge of the cap 300 is inserted into the fastening groove 210 of the plurality of fixing members 200, so that the plurality of fixing members 200 can be arranged at a predetermined distance from each other.
  • a plurality of protrusions 220 may be formed on the inner peripheral surface of the fixing member 200, and the insert fastening portion 21 of the insert 20, which will be described later, may be engaged with these protrusions 220.
  • These protrusions 220 may be disposed on the inner peripheral surface of the fixing member 200 so that a plurality of protrusions 220 arranged along the first direction of the fixing member 200 are spaced apart from each other at a predetermined distance in the second direction. there is.
  • the plurality of protrusions 220 may be spaced apart from each other in the circumferential direction of the insert 20.
  • At least one protrusion of the protrusion 220 may have a shape in which the cross-sectional area in a direction perpendicular to the protrusion direction decreases toward the protrusion direction. Additionally, at least one protrusion of the protrusion 220 may be formed to have a triangular cross-sectional area in a direction perpendicular to the direction offset from the protrusion direction.
  • An inclined surface may be formed on the side of the protrusion 220. For example, the inclined surface of the protrusion 220 may be inclined at an angle of 40 to 50 degrees with respect to the protruding direction.
  • a threaded portion 230 may be formed in the fixing member 200 instead of the protruding portion 220 or in addition to the protruding portion 220.
  • a plurality of threaded portions 230 may be formed on the inner peripheral surface of the fixing member 200, and the fastening groove 210 of the insert 20 may be engaged with the threaded portions 230.
  • the threaded portion 230 may have a shape in which the cross-sectional area in a direction perpendicular to the protrusion direction decreases toward the protrusion direction.
  • a plurality of these threaded portions 230 may be arranged along the extending direction (first direction in FIG. 10) of the fixing member 200 in a form extending in one direction (second direction in FIG. 10).
  • the fixing member 200 includes a first fixing member 201, a second fixing member 202, a third fixing member 203, and a fourth fixing member arranged at a predetermined distance from each other along the circumferential direction of the insert 20. It may include member 204.
  • the outer edge of the cap 300 is inserted and supported in the fastening groove 210 of the first fixing member 201, the second fixing member 202, the third fixing member 203, and the fourth fixing member 204. It can be. By inserting the outer edge of the cap 300 into the fastening groove 210 of the plurality of fixing members 200, the plurality of fixing members 200 can be arranged at a predetermined distance from each other.
  • the plurality of fixing members 200 (200) Each can be supported so as not to deviate to one side or the other. Meanwhile, a predetermined space may be formed between the plurality of fixing members 200 by the cap 300, and a locking portion 310 of the cap 300, which will be described later, can be caught in the predetermined space.
  • the outer edge of the cap 300 is inserted into the fastening groove 210 of the plurality of fixing members 200 so that the plurality of fixing members 200 can be arranged at a predetermined distance from each other. can support.
  • This cap 300 is formed when the outer edge of the cap 300 is inserted into the fastening groove of the plurality of fixing members 200 and the plurality of fixing members 200 are disposed inside the connector body 110.
  • a plurality of fixing members 200 can be supported so that each fixing member 200 does not deviate to one side or the other.
  • the cap 300 supports the plurality of fixing members 200 so that at least one of the plurality of fixing members 200 does not come off and the plurality of fixing members 200 are arranged at a predetermined distance from each other. It can be supported.
  • the cap 300 supports the plurality of fixing members 200, the plurality of fixing members 200 can be easily inserted into the connector body 110 without each of the plurality of fixing members 200 being separated. You can. Meanwhile, one side of the elastic member 400 may be supported on the other side of the cap 300. A locking portion 310 and a cap screw thread 320 may be formed in this cap 300.
  • the locking portion 310 may protrude from any part of the outer peripheral surface of the cap 300. This locking portion 310 may be disposed in the space between the plurality of fixing members 200. In other words, the catching portion 310 may be caught on one side of the fixing member 200. When the catching portion 310 is caught on one side of the fixing member 200, when the remover shaft 500 is rotated in one direction, the plurality of fixing members 200 may be moved to the other side by a predetermined length.
  • the cap thread 320 may be formed in the central portion of the cap 300, and the shaft thread 510, which will be described later, of the remover shaft 500 may be engaged with the cap thread 320. For example, when the remover shaft 500 is rotated in one direction, the cap 300 may be moved to the other side by the engaged shaft thread 510.
  • the elastic member 400 may provide elastic force to press the cap 300 to one side in a direction in which the plurality of fixing members 200 are moved to one side.
  • One side of the elastic member 400 may be supported on the other side of the cap 300 and the other side may be supported on one side of the head 120 of the body unit 100.
  • the elastic member 400 presses the cap 300 to one side, so that the outer peripheral surface of the plurality of fixing members 200 is the connector body. It touches the inner peripheral surface of (110).
  • the plurality of fixing members 200 may block movement to one side of the insert 20 by pressing the insert 20 in the center direction of the insert 20 while reducing the distance between them.
  • a shaft thread 510 that engages the cap thread 320 of the cap 300 may be formed on the remover shaft 500.
  • the shaft engaged with the shaft thread 510 As the cap screw thread 320 is relatively rotated along the shaft screw thread 510, the cap 300 may be moved to the other side. As the cap 300 is moved to the other side, the plurality of fixing members 200 fastened to the cap 300 may also be moved to the other side. When the plurality of fixing members 200 are moved to the other side, the distance between the plurality of fixing members 200 increases and the insert 20 is no longer pressed, so the insert 20 moves from the fixing member 200 to one side. It can be allowed to happen. In order for the remover shaft 500 to rotate in place without being moved to one side or the other, the catching portion 310 of the cap 300 may be hung on one side of the fixing member 200.
  • the remover shaft 500 is not rotated, but the remover shaft 500 is moved to the other side by external force applied by a user, etc., thereby releasing the engagement between the fixing member 200 and the insert 20, so that the insert 20 is fixed. Movement from the member 200 to one side may be permitted.
  • the remover shaft 500 when the remover shaft 500 is moved to the other side, the plurality of fixing members 200 supported by the cap 300 may be moved to the other side. Accordingly, as the distance between the plurality of fixing members 200 increases, the insert 20 does not press on the insert 20 and the insert 20 can be allowed to move to one side from the fixing member 200. Meanwhile, the remover shaft 500 may be arranged to penetrate the through hole 121 of the head 120 of the body unit 100.
  • the insert 20 may be inserted into the insertion space S of the fixing member 200 and engaged with the insert fixture 10 by moving relative to the insert fixture 10 from one side to the other side.
  • An insert fastening portion 21 may be formed in the insert 20 to engage with the inner peripheral surface protrusion 220 or the threaded portion 230 of the fixing member 200.
  • the insert fastening portion 21 formed on the insert 20 may be engaged with the protruding portion 220 or the threaded portion 230 on the inner peripheral surface of the fixing member 200.
  • the insert fastening portion 21 may be formed in the form of a screw thread.
  • the insert fastening portion 21 of this thread type may be named the insert thread 21a (see FIG. 11).
  • a plurality of these insert threads 21a may be arranged along the extension direction (up and down direction in FIG. 11) of the insert thread 21a in a form extending in one direction (left and right directions in FIG. 11).
  • a plurality of insert threads 21a may be arranged at intervals of 0.5 pitch along the extension direction.
  • the insert fastening portion 21 may be formed in the form of a protrusion.
  • the insert fastening portion 21 in the form of this protrusion may be named the insert protrusion 21b (see FIG. 12).
  • a plurality of insert protrusions (21b) are extended at an angle with respect to an imaginary axis extending in one direction (left and right directions in FIG. 12) and extend along the extension direction (up and down direction in FIG. 12) of the insert protrusions (21b). can be arranged.
  • the elastic member 400 presses the cap 300 to one side, so that the outer peripheral surface of the plurality of fixing members 200 is the inner peripheral surface of the connector body 110. comes into contact with.
  • the plurality of fixing members 200 can prevent the insert 20 from moving to one side from the fixing member 200 by pressing the insert 20 in the center direction of the insert 20 while reducing the distance between them. You can. Therefore, the insert 20 can be strongly fixed to the fixing member 200, that is, the insert fixture 10.
  • the cap 300 and the cap 300 The plurality of fixing members 200 supported by can be moved to the other side. Additionally, by moving the remover shaft 500 to the other side, the plurality of fixing members 200 supported by the cap 300 can be moved to the other side. When the plurality of fixing members 200 are moved to the other side, the distance between the plurality of fixing members 200 increases and the insert 20 is no longer pressed, so the insert 20 moves from the fixing member 200 to one side. It can be allowed to happen. Accordingly, the insert 20 can be separated from the fixing member 200, that is, the insert fixture 10.
  • the connector 1 according to the present invention is prevented from moving to one side of the insert 20 by the plurality of fixing members 200, so that the insert 20 can be strongly fixed to the insert fixture 10. Additionally, when the remover shaft 500 is rotated in one direction or moved to the other side, the engagement between the plurality of fixing members 200 and the insert 20 may be released, allowing the insert 20 to move to one side. Accordingly, the insert 20 can be separated from the insert fixture 10.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

La présente invention concerne un raccord de construction modulaire qui s'accouple sans fixation. En particulier, selon un mode de réalisation, la présente invention concerne un raccord de construction modulaire qui s'accouple sans fixation, comprenant : une unité de corps comprenant un corps de raccord formé de telle sorte que sa surface périphérique interne a une surface de section transversale qui devient plus petite vers un côté de celui-ci ; un ou plusieurs éléments de fixation, qui sont disposés dans le corps de raccord, ont des surfaces périphériques externes correspondant à la surface périphérique interne du corps de raccord, et sont alignés de telle sorte qu'un espace d'insertion est formé à l'intérieur ; et un insert, qui se déplace d'un côté du corps de raccord vers l'autre côté opposé au premier côté, de façon à être inséré dans l'espace d'insertion et à venir en prise avec la surface périphérique interne de l'élément de fixation, lorsque le ou les éléments de fixation sont appliqués, lors de l'insertion de l'insert à une longueur prédéfinie dans l'espace d'insertion, avec une force externe dans la direction de déplacement de celui-ci vers le premier côté, les surfaces périphériques externes du ou des éléments de fixation viennent en contact avec la surface périphérique interne du corps de raccord et la distance entre les éléments de fixation est réduite de façon à presser l'insert vers le centre de l'insert, bloquant ainsi le mouvement de l'insert vers le premier côté.
PCT/KR2023/007273 2022-09-21 2023-05-26 Raccord de construction modulaire à accouplement sans fixation WO2024063244A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2022-0119658 2022-09-21
KR1020220119658A KR20240040559A (ko) 2022-09-21 2022-09-21 패스닝 없이 결합되는 모듈러 건축물 커넥터

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WO2024063244A1 true WO2024063244A1 (fr) 2024-03-28

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PCT/KR2023/007273 WO2024063244A1 (fr) 2022-09-21 2023-05-26 Raccord de construction modulaire à accouplement sans fixation

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WO (1) WO2024063244A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002227343A (ja) * 2001-02-02 2002-08-14 Ps Corp Ｐｃ鋼棒の係着装置、連結装置および定着装置
KR101929179B1 (ko) * 2018-05-10 2018-12-13 송주천 원터치식 커플러
KR200490659Y1 (ko) * 2019-02-28 2019-12-13 주식회사 신우산업 철근 볼트 고정 복합 너트
KR102220916B1 (ko) * 2019-09-30 2021-02-25 손명규 복합 연결식 철근 커플러
KR102221614B1 (ko) * 2019-02-20 2021-03-02 웰시스 주식회사 철근 연결용 원터치 커플러
KR20220037052A (ko) * 2020-09-17 2022-03-24 주식회사 나노텍세라믹스 철근 연결 장치

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002227343A (ja) * 2001-02-02 2002-08-14 Ps Corp Ｐｃ鋼棒の係着装置、連結装置および定着装置
KR101929179B1 (ko) * 2018-05-10 2018-12-13 송주천 원터치식 커플러
KR102221614B1 (ko) * 2019-02-20 2021-03-02 웰시스 주식회사 철근 연결용 원터치 커플러
KR200490659Y1 (ko) * 2019-02-28 2019-12-13 주식회사 신우산업 철근 볼트 고정 복합 너트
KR102220916B1 (ko) * 2019-09-30 2021-02-25 손명규 복합 연결식 철근 커플러
KR20220037052A (ko) * 2020-09-17 2022-03-24 주식회사 나노텍세라믹스 철근 연결 장치

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