US20080072530A1 - Pre-embedded connector formed by hot rolled steel for concrete - Google Patents

Pre-embedded connector formed by hot rolled steel for concrete Download PDF

Info

Publication number
US20080072530A1
US20080072530A1 US11/987,358 US98735807A US2008072530A1 US 20080072530 A1 US20080072530 A1 US 20080072530A1 US 98735807 A US98735807 A US 98735807A US 2008072530 A1 US2008072530 A1 US 2008072530A1
Authority
US
United States
Prior art keywords
channel
concrete
feet
hot
rolled steel
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US11/987,358
Inventor
Yau Sum
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asia Advanced Metal Products Co Ltd
Original Assignee
Asia Advanced Metal Products Co Ltd
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
Priority to CN200510074661.X priority Critical
Priority to CNA200510074661XA priority patent/CN1869355A/en
Application filed by Asia Advanced Metal Products Co Ltd filed Critical Asia Advanced Metal Products Co Ltd
Publication of US20080072530A1 publication Critical patent/US20080072530A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/40Separate connecting elements
    • E04B1/41Connecting devices specially adapted for embedding in concrete
    • E04B1/4107Longitudinal elements having an open profile, with the opening parallel to the concrete or masonry surface, i.e. anchoring rails

Abstract

A pre-embedded connector formed by hot-rolled steel for concrete including a channel bar and an anchor-bolt connecting with it. The channel bar has a channel shape and has a notch. A T type of connecting screw bolt having a bolting portion is provided inside each of the channel feet of the two sides of channel bar. The channel bar is formed by hot-rolling. There are small teeth which are provided on inboard surfaces of the two channel feet of the channel bar, forming two inboard teeth-shape surfaces, which firmly connect with the two inboard surfaces of the bolting portions of the T type of connecting screw bolt. The anchor-bolt is installed on the top of the channel bar and the feet of the anchor bolt are fixed on a planar surface of the top of the channel bar by welding.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a connector for concrete, especially a pre-embedded connector formed by hot-rolled steel for concrete.
  • 2. Description of the Related Art
  • Currently, a channel pre-embedded connector for concrete is made usually by casting. The top of the groove of the channel connector is provided with a screw bolt and a T type of connecting screw bolt can be provided in the channel feet of two sides thereof. Because the inboard surfaces of both the channel feet and the T type of screw bolts are plane surfaces, the pre-embedded connector is likely to produce a trackslip, leading to a loosening between the T type of screw bolts and the channel feet of the connector, thereby causing problems in the construction of building-decoration. Secondly, the current fasteners further need to be welded in construction, so as to prevent the lateral or vertical displacement. Furthermore, the casts of the channel connector are heavier, and rust easily. This will bring inconvenience to the installing in construction and influence the service-life thereof. Therefore it is necessary to improve the current connectors,
  • The Chinese patent document No. CN1078290C has opened an anchor-bolting guide for construction engineering and a method for manufacturing it. An opening hole is provided on the molded guide. The cross section of the anchor-bolt is smaller than the opening hole. The anchor-bolt can clip the periphery of the opening hole along the around thereof with the feet, for example, by forging, only in virtue of the material plastic deformation after the anchor-bolt is fixed in the opening hole. The die is pressed on the formed conical portion of the guide from outside when the guide is forged, so as to better form the feet of the anchor-bolt. This type of anchor-bolting guide is manufactured by forge-pressing.
  • SUMMARY OF THE INVENTION
  • The object of the present invention is to provide an improved pre-embedded connector formed by hot-rolled steel for concrete, so as to resolve the problems of loosening between the current channel connector casts and the T type of the connecting bolts and the connector casts being heavier, prone to rust, inconvenient in installing of construction and having shorter service-life, and to create such a pre-embedded connector formed by hot-rolled steel for concrete, which has a structure different from the above-mentioned current anchor-bolting guide and is manufactured by a method different from it.
  • The technical solution of the present invention is as follows:
  • A pre-embedded connector formed by hot-rolled steel for concrete mainly includes a channel bar and anchor-bolts connected to it. The channel bar has a channel shape and has a notch. A T type of connecting screw bolt having a bolting portion is provided inside the channel feet of the two sides of channel bar. The channel bar is formed by hot-rolling. There are small teeth which are provided on inboard surfaces of the two channel feet of the channel bar, forming two inboard tooth-shape surfaces, which firmly connect with the two inboard surfaces of the bolting portions of the T type of connecting screw bolt. The anchor-bolt is installed on the top of the channel bar and the feet of the anchor bolt are fixed on the planar surface of the top of the channel bar by welding.
  • The pre-embedded connector for concrete according to the present invention is formed by hot-rolled steel and possesses the following advantages over existing channel connector casts: lighter weight, not prone to rust after zinc-plating, easy to install in construction and a prolonged service-life. Because the anchor-bolt of this connector is fixedly installed on the top plane surface of the groove of the channel bar by welding, it is easy to be installed conveniently, to be welded firmly and can dispense with the annoying procedure of requiring formation of an opening hole on the guide first and then forging the anchor-bolt to be in deformation, so as to clip the periphery of the opening hole, as in the current anchor-building guide. Therefore, this connector presents its application worthiness and wider market perspective.
  • The pre-embedded connector formed by hot-rolled steel for concrete according to the present invention is designed so that the inboard plane surfaces of the channel feet thereof are teeth-shape surfaces, so as to connect with teeth-shape surfaces of the inside of the T type of bolting portion of the screw bolt tightly and firmly and can reach the function of three-dimensional tightness, no matter whether this pre-embedded connector formed by hot-rolled steel for concrete is designed to be pre-embedded in concrete structure vertically or laterally. It also does not need hereafter to add the unnecessary procedure of welding on the fastener to prevent from the lateral or vertical displacement thereof.
  • The greatest lateral resistance of earthquake-proofing of the pre-embedded connector in use can reach 57 KN/per each bolt, which is larger than the lateral resistance of the current pre-embedded connector.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a plan view for illustrating the structure of a pre-embedded connector formed by hot-rolled steel for concrete according to the present invention;
  • FIG. 2 is a cross section view along the line A-A of the FIG. 1;
  • FIG. 3 is a cross section view along the line B-B of FIG. 1;
  • The parts used in the application documents, the sign numbers of which are indicated in figures are listed as follows:
    • 1 channel bar
    • 2 anchor-bolt
    • 3 welding
    • 4 fusion-weld
    • 11 notch
    • 12 top of the channel bar
    • 13 channel feet
      • 14 small teeth
    • 15 teeth-shape surfaces of the channel feet
    • 21 feet of the anchor-bolt
    • 22 strengthening rib
    • 23 strengthening rib
    DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS
  • Referring to FIGS. 1 and 2, the pre-embedded connector formed by hot-rolled steel for concrete according to the present invention comprises mainly a channel bar 1 and an anchor-bolt 2 connecting with it. The channel bar 1 presents a channel shape and has a notch 11. Inside the notch 11 of two channel feet 13 of the channel bar 1 a T type of connecting screw bolt is provided (not shown in Figs) and the T type of screw bolt is provided with a bolting portion for tight pressing the channel feet 13 of two sides thereof.
  • The small teeth 14 are provided on the inboard surfaces of the both two channel feet 13 of the channel bar 1 to form two inboard teeth-shape surfaces 15. The two inboard teeth-shape surfaces 15 of the channel feet tightly connect with the two inboard surfaces of the bolting portion of the T type connecting screw bolt, so as to tightly mesh and firmly connect the both inboard surfaces. The small teeth 14 provided on the teeth-shape surfaces 15 of the two channel feet can be thin teeth, which are arranged continuously, i.e., (not interrupted) or they can be serrations, which are arranged intermittently, i.e. in intervals.
  • The teeth-shape surfaces 15 of the channel feet firmly mesh-connect with the bolting portion of the T type of connecting screw bolt, both of the two inboard surfaces of which can be provided as plane surfaces, or provided with small teeth to form two inboard teeth-shape surfaces, enabling them to more firmly connect with two teeth-shape surfaces 15 of the two channel feet.
  • The anchor-bolt 2 is installed on a top 12 of the channel bar 1 and the feet 21 of the anchor-bolt are fixed on a planar surface of the top 12 by welding. With reference to FIG. 2, the feet 21 of the anchor-bolt 2 are fixedly connected to the planar surface of the top 12 by welding 3. Further referring to FIG. 2, the feet 21 of the anchor-bolt are firmly connected to the planar surface of the top 12 by fusion-welding 4. The fusion-welding 4 produces an electric arc by a soldering gun of a soldering machine, enabling the feet 21 of the anchor-bolt to fusion-connect to the plane of the top 12.
  • The channel bar 1 of the pre-embedded connector is formed by hot-rolling, i.e., hot-rolling steel, so as to be more easily machine-shaped.
  • The fasteners cannot be loosened after the pre-embedded connector and the T type of connecting screw bolt are tightened together with each other when suffering the shock or shake from any axis, thereby enabling improvement in security and reliability.
  • It will be appreciated by those skilled in the art that the above-mentioned embodiment is only used for describing the present invention and not is the definition to the present invention and various changes or variations of the above embodiment may be made without departing from the scope of the invention and will fall into within the scope defined by the claims of this application.

Claims (9)

1. A pre-embedded connector formed by hot-rolled steel for concrete, comprising:
a channel bar;
an anchor bolt connected to the channel bar, the channel bar having a channel shape and having a notch; and
two T-type connecting screwbolts provided inside two channel feet formed on two sides of the channel bar, respectively, each of the T-type connecting screwbolts having a bolting portion,
wherein the channel bar is formed by hot-rolling,
wherein small teeth are provided on inboard surfaces of the two channel feet of the channel bar so as to form two inboard teeth-shape surfaces for firmly connecting with the inboard surface of the bolting portion of each of the two T-type connecting screwbolts, and
wherein the anchor bolt is installed on a planar surface of a top of the channel bar and the feet of the anchor bolt are fixed on a planar surface of the top of the channel bar by welding.
2. The pre-embedded connector formed by hot-rolled steel for concrete according to claim 1, wherein said peripheral surfaces of the anchor-bolt are provided with projecting strengthening ribs.
3. The pre-embedded connector formed by hot-rolled steel for concrete according to claim 2, wherein the projecting strengthening ribs are arranged spirally.
4. The pre-embedded connector formed by hot-rolled steel for concrete according to claim 2, wherein the projecting strengthening ribs are arranged in a patterned form.
5. The pre-embedded connector formed by hot-rolled steel for concrete according to claim 2, wherein the projecting strengthening ribs are arranged longitudinally.
6. The pre-embedded connector formed by hot-rolled steel for concrete according to claim 1, wherein the small teeth, which are provided on the teeth-shape surfaces of the channel feet of the channel bar, are thin serrations 14 which are arranged continuously.
7. The pre-embedded connector formed by hot-rolled steel for concrete according to claim 1, wherein the small teeth, which are provided on the teeth-shape surfaces of the channel feet of the channel bar, are thin serrations 14 which are arranged intermittently.
8. The pre-embedded connector formed by hot-rolled steel for concrete according to claim 1, wherein the feet of the anchor-bolt are fixedly connected to the plane surface of the groove top by welding.
9. The pre-embedded connector formed by hot-rolled steel for concrete according to claim 1, wherein the feet of the anchor-bolt are fixedly connected to the plane surface of the groove top by fusion-welding.
US11/987,358 2005-05-23 2007-11-29 Pre-embedded connector formed by hot rolled steel for concrete Abandoned US20080072530A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200510074661.X 2005-05-23
CNA200510074661XA CN1869355A (en) 2005-05-23 2005-05-23 Hot-rolled steel built-in connection for concrete

Publications (1)

Publication Number Publication Date
US20080072530A1 true US20080072530A1 (en) 2008-03-27

Family

ID=37443122

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/987,358 Abandoned US20080072530A1 (en) 2005-05-23 2007-11-29 Pre-embedded connector formed by hot rolled steel for concrete

Country Status (2)

Country Link
US (1) US20080072530A1 (en)
CN (1) CN1869355A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110173920A1 (en) * 2007-09-11 2011-07-21 Pak Sum Yau Channel
US20140318072A1 (en) * 2011-12-19 2014-10-30 Jae-ho Lee Plate welding-type anchor channel and method for manufacturing same
US10161128B2 (en) * 2016-06-15 2018-12-25 Halfen Gmbh Anchor rail and building structure having an anchor rail
EP3712339A1 (en) * 2019-03-19 2020-09-23 Haz Metal Deutschland GmbH Anchor rail for anchoring in concrete

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013013375A1 (en) * 2011-07-25 2013-01-31 Yau Pak Sum Embedded anchor slot assembly used in building industry

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US827613A (en) * 1905-01-16 1906-07-31 James A Brown Anchorage for concrete structures.
US950771A (en) * 1908-10-26 1910-03-01 Alfred P Lohmann Anchoring device for use in connection with concrete structures.
US992877A (en) * 1909-08-27 1911-05-23 Trussed Concrete Steel Co Shaft-hanger support.
US1035525A (en) * 1911-01-25 1912-08-13 William W Bright Concrete insert.
US1561126A (en) * 1921-07-05 1925-11-10 John C Timm Concrete-reenforcing member
US1581262A (en) * 1923-03-26 1926-04-20 Gabriel Steel Company Channeled insert for concrete ceilings
US2676680A (en) * 1952-02-05 1954-04-27 Orlan C Kindorf Beam structure and associated securing means
US3903671A (en) * 1972-11-07 1975-09-09 Bpb Industries Ltd Wall linings
US3951371A (en) * 1971-05-11 1976-04-20 Globe-Lak N.V. Fixation for a plate sheathing
US4052833A (en) * 1976-07-13 1977-10-11 Karlheinz Beine Track assembly with anchoring device
US4130977A (en) * 1977-01-10 1978-12-26 Versabar Corporation Concrete insert
US4333289A (en) * 1980-02-29 1982-06-08 Strickland Systems, Inc. Concrete form support structure
US4542871A (en) * 1983-02-14 1985-09-24 Thomas & Betts Corporation Clamp for mounting cable on channel support
US4571912A (en) * 1984-03-02 1986-02-25 Siegfried Fricker Overhead anchoring track
US4739601A (en) * 1985-12-24 1988-04-26 Halfeneisen Gmbh & Co. Kommanditgesellschaft Construction anchor channel
US4948313A (en) * 1988-11-23 1990-08-14 Wesanco, Inc. Nut platform for framing channels
US5548939A (en) * 1994-05-25 1996-08-27 Carmical; Clifton Adjustable insert for use with concrete or steel
US5743062A (en) * 1994-02-15 1998-04-28 Halfen Gmbh & Co. Kommanditgesellschaft Anchoring device for housing/building construction
US6086300A (en) * 1997-01-16 2000-07-11 Halfen Gmbh & Co. Clamping screw

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US827613A (en) * 1905-01-16 1906-07-31 James A Brown Anchorage for concrete structures.
US950771A (en) * 1908-10-26 1910-03-01 Alfred P Lohmann Anchoring device for use in connection with concrete structures.
US992877A (en) * 1909-08-27 1911-05-23 Trussed Concrete Steel Co Shaft-hanger support.
US1035525A (en) * 1911-01-25 1912-08-13 William W Bright Concrete insert.
US1561126A (en) * 1921-07-05 1925-11-10 John C Timm Concrete-reenforcing member
US1581262A (en) * 1923-03-26 1926-04-20 Gabriel Steel Company Channeled insert for concrete ceilings
US2676680A (en) * 1952-02-05 1954-04-27 Orlan C Kindorf Beam structure and associated securing means
US3951371A (en) * 1971-05-11 1976-04-20 Globe-Lak N.V. Fixation for a plate sheathing
US3903671A (en) * 1972-11-07 1975-09-09 Bpb Industries Ltd Wall linings
US4052833A (en) * 1976-07-13 1977-10-11 Karlheinz Beine Track assembly with anchoring device
US4130977A (en) * 1977-01-10 1978-12-26 Versabar Corporation Concrete insert
US4333289A (en) * 1980-02-29 1982-06-08 Strickland Systems, Inc. Concrete form support structure
US4542871A (en) * 1983-02-14 1985-09-24 Thomas & Betts Corporation Clamp for mounting cable on channel support
US4571912A (en) * 1984-03-02 1986-02-25 Siegfried Fricker Overhead anchoring track
US4739601A (en) * 1985-12-24 1988-04-26 Halfeneisen Gmbh & Co. Kommanditgesellschaft Construction anchor channel
US4948313A (en) * 1988-11-23 1990-08-14 Wesanco, Inc. Nut platform for framing channels
US5743062A (en) * 1994-02-15 1998-04-28 Halfen Gmbh & Co. Kommanditgesellschaft Anchoring device for housing/building construction
US5548939A (en) * 1994-05-25 1996-08-27 Carmical; Clifton Adjustable insert for use with concrete or steel
US6086300A (en) * 1997-01-16 2000-07-11 Halfen Gmbh & Co. Clamping screw

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110173920A1 (en) * 2007-09-11 2011-07-21 Pak Sum Yau Channel
US20140318072A1 (en) * 2011-12-19 2014-10-30 Jae-ho Lee Plate welding-type anchor channel and method for manufacturing same
US10161128B2 (en) * 2016-06-15 2018-12-25 Halfen Gmbh Anchor rail and building structure having an anchor rail
EP3712339A1 (en) * 2019-03-19 2020-09-23 Haz Metal Deutschland GmbH Anchor rail for anchoring in concrete

Also Published As

Publication number Publication date
CN1869355A (en) 2006-11-29

Similar Documents

Publication Publication Date Title
US8402701B2 (en) Anchor for handling building elements, in particular a concrete panel
US20080072530A1 (en) Pre-embedded connector formed by hot rolled steel for concrete
US4817359A (en) Multiple wood truss connection
US8545157B2 (en) Metal members and assemblies that have reinforced punched holes and method of forming the holes
US8701876B2 (en) Clips for attaching staples for joining conveyor belt ends and clip-staple assemblies
JP2007530893A (en) Self-mounting fasteners and their mounting methods
US7455349B2 (en) Truck platform construction
PT1843866E (en) Composite profile provided with a support body made of a light metal material and a profiled strip and a method for producing said profile
EP1366254A1 (en) Security fences
EP2935820A1 (en) An exhaust pipe band clamp
HUE030231T2 (en) Clip connection
RU2678290C2 (en) Barrier wall element
AU2011224134A1 (en) Elastic clip for fixing a railway rail and method for installing the same
CN202007500U (en) Concealed gusset plate profile and gusset plate connecting structure
KR200364620Y1 (en) Joint for concrete pile
US20030164487A1 (en) Security fence with secured bolts
CN2773211Y (en) Hot-rolled steel built-in connector for concrete
CN102597383B (en) Moldable anchor rail
CN108351047A (en) Pipe clamp for a certain range of pipe diameter
CN208899525U (en) The fixed structure of pre-buried channel flow
DE202009012533U1 (en) Castable anchor rail
CA2531369A1 (en) Strap tightening device
JP3205541U (en) Groove structure
EP2212159B1 (en) A crash box and the attachment of a crash box to a side rail of a vehicle
CN208306753U (en) A kind of A column connecting board structure

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION