CN110468969B - Steel bar anchor - Google Patents
Steel bar anchor Download PDFInfo
- Publication number
- CN110468969B CN110468969B CN201910761190.1A CN201910761190A CN110468969B CN 110468969 B CN110468969 B CN 110468969B CN 201910761190 A CN201910761190 A CN 201910761190A CN 110468969 B CN110468969 B CN 110468969B
- Authority
- CN
- China
- Prior art keywords
- half screw
- screw rod
- anchor
- anchor body
- steel cable
- 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.)
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 43
- 239000010959 steel Substances 0.000 title claims abstract description 43
- 238000003466 welding Methods 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Images
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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4107—Longitudinal elements having an open profile, with the opening parallel to the concrete or masonry surface, i.e. anchoring rails
-
- 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
- E04B1/4114—Elements with sockets
- E04B1/415—Elements with sockets with captive and extendable anchoring parts, e.g. spring-loaded bolts, hanging rings
-
- 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
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
-
- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
Abstract
The invention provides a steel bar anchor, which comprises an anchor body, wherein the outer wall of the anchor body is provided with threads, the anchor body is divided into a first half screw and a second half screw along the length direction of the anchor body in a half-and-half way, a dovetail groove is formed in the dividing surface of the first half screw along the length direction of the first half screw, and a dovetail block which is arranged along the length direction of the second half screw and slides in a matching way with the dovetail groove is formed in the dividing surface of the second half screw; the first half screw rod and the second half screw rod are provided with pressing holes at the same end, two ends of the steel cable are respectively inserted into the pressing holes of the first half screw rod and the second half screw rod, and two ends of the steel cable are fixed with the pressing holes in an interference fit mode or in a welding mode. The invention has the advantages of firm fixation and capability of fixing through the fixed point in a closed loop state.
Description
Technical Field
The invention relates to the field of buildings, in particular to a steel bar anchor.
Background
When building construction, the occasion that needs set up the anchor is difficult to avoid, current anchor is wanted to link to each other fixedly with the reinforcing bar in the reinforced concrete, generally choose the anchor of area colluding to hang the form portion on the reinforcing bar, then water, nevertheless because the form portion that colludes has the opening, the condition that the form portion breaks away from easily produces takes place, simultaneously to some anchor points that expose outside, the form portion that colludes can make the form portion drop because of rocking of the anchor on the reinforcing bar, cause the condition of fixing insecure to take place, even water in the concrete, also can lead to the exposed part of anchor body to break because of rocking to cause the metal fatigue to take place because of the long-term reciprocal bending many times, there is certain potential safety hazard, simultaneously to the occasion of heavy load, collude form portion structure is fixed extremely easily because of colluding form portion atress back deformation straightening and break away from, there is the relatively poor shortcoming of reliability.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a steel bar anchor which is firmly fixed and can be fixed through a fixed point in a closed loop state.
Aiming at the problems, the following technical scheme is provided: a reinforcing steel bar anchor comprises an anchor body, wherein threads are arranged on the outer wall of the anchor body, the anchor body is divided into a first half screw and a second half screw along the length direction of the anchor body, a dovetail groove is formed in the dividing surface of the first half screw along the length direction of the first half screw, and a dovetail block which is arranged along the length direction of the second half screw and slides in a manner of being matched with the dovetail groove is formed in the dividing surface of the second half screw; the first half screw rod and the second half screw rod are provided with pressing holes at the same end, two ends of the steel cable are respectively inserted into the pressing holes of the first half screw rod and the second half screw rod, and two ends of the steel cable are fixed with the pressing holes in an interference fit mode or in a welding mode.
In the structure, the anchor body is divided into the first half screw rod and the second half screw rod, the first half screw rod and the second half screw rod are matched and fixed with the dovetail groove through the dovetail block, when the anchor body is installed, the first half screw rod and the second half screw rod are only required to be staggered and slid away to be separated, the first half screw rod or the second half screw rod is aligned and buckled again after penetrating through a closed loop fixing point needing to be fixed, the threads of the first half screw rod and the second half screw rod are aligned, a nut for fixing is screwed after an object needing to be fixed is installed, anti-loosening fixing can be achieved by utilizing a mode that the double nuts are abutted against each other, two ends of the steel cable are fixed with the press fit holes in an interference fit mode or in a welding mode, and due to the fact that the steel cable is stressed.
The invention is further provided that a packing nut is screwed on the thread of the outer wall of the anchor body.
Among the above-mentioned structure, to some special occasions, need control anchor body position to avoid it to appear rocking, set up after the anchor body wears out the through-hole and compel tight nut and tighten taut cable wire, make the anchor body become a fixed point of immobilization, applicable occasion is wide, uses nimble reliable.
The invention is further arranged in that a tightening sleeve is sleeved on the anchor body at one side of the tightening nut facing the steel cable, and a support ring is arranged at one end of the tightening sleeve facing the tightening nut.
Among the above-mentioned structure, the support ring of tightening sleeve offsets with the compel tight nut and supports, the axial tension who produces when effectively reducing the compel tight nut and screw, because the fixed position diameter that the cable wire passed differs, to some major diameter's fixed point, make the bend radius grow of cable wire easily, the radial direction of cable wire both ends to first half screw rod and second half screw rod produces the pulling force when causing to tighten up, influence the fixed firmness between cable wire and the pressfitting hole easily, consequently set up the tightening sleeve and be convenient for in tightening sleeve with the cable wire income, reduce the radial force that produces when the cable wire is taut.
The invention is further arranged in such a way that an inner chamfer is arranged at the junction of the end surface of one end of the tightening sleeve, which is back to the packing nut, and the inner hole.
In the structure, the inner chamfer angle can reduce the scraping between the steel cable and the tightening sleeve when the steel cable is put into the tightening sleeve.
The invention further provides that the total length of the bendable part of the steel cable is more than twice of the total length of the anchor body or the first half screw rod or the second half screw rod.
In the above structure, since the length of the first half screw and the second half screw needs to be staggered when the first half screw and the second half screw are staggered and separated from each other is equal to the length of the first half screw and the second half screw, if the total length of the bendable part of the steel cable is too small, the first half screw and the second half screw cannot be completely staggered and separated due to the limitation of the length of the steel cable.
The invention is further provided that a protective sleeve is sleeved outside the steel cable.
In the structure, the protective sleeve can provide protection for the steel cable, so that the steel cable is stressed more uniformly, a part of air can be isolated, and the possibility of rusting and corrosion of the steel cable is reduced.
The invention is further provided that the protective sleeve is a rubber sleeve.
In the structure, the rubber sleeve has the advantages of good elasticity, low price and good flexibility, and is convenient to bend along with the steel cable.
The invention is further arranged that the ends of the first half screw rod and the second half screw rod, which are provided with the press fit holes, are polished rods which are not provided with threads, and the length of the polished rods is not less than the depth of the press fit holes.
In the structure, the first half screw and the second half screw are provided with the polished rod, so that the weakening of the position strength of the press-fit hole caused by the arrangement of the threads can be avoided.
The invention is further arranged that the cross section outline of the pressing hole of the first half screw is smaller than the cross section of the first half screw; the cross section profile of the pressing hole of the second half screw is smaller than that of the second half screw.
In the structure, the wall thickness of the press-fit hole is ensured to be uniform, the consistency is good, and uniform stress is facilitated.
The invention has the beneficial effects that: the anchor body is divided into a first half screw and a second half screw, the first half screw and the second half screw are matched and fixed with a dovetail groove through the dovetail block, when the anchor body is installed, the first half screw and the second half screw are only required to be staggered and slid away from each other to be separated, the first half screw or the second half screw penetrates through a closed loop fixing point to be fixed, then the first half screw and the second half screw are aligned and fastened again, the threads of the first half screw and the second half screw are aligned, a nut for fixing is screwed after an object to be fixed is installed, anti-loosening fixing can be achieved by means of opposite jacking of the two nuts, two ends of a steel cable are fixed with a press fit hole in an interference fit mode or in a welding mode, and due to the fact that the steel cable is stressed, the anchor.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the first perspective exploded structure of the present invention.
Fig. 3 is a schematic diagram of the second perspective exploded structure of the present invention.
The reference numbers in the figures mean: 10-an anchor body; 11-a thread; 12-a first half screw; 121-dovetail groove; 13-a second half screw; 131-dovetail block; 14-a steel cord; 15-pressing the hole; 16-a packing nut; 17-tightening the sleeve; 171-a support ring; 172-inner chamfer; 18-a protective jacket; 19-polished rod.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, the steel bar anchor shown in fig. 1 to 3 comprises an anchor body 10, wherein the outer wall of the anchor body 10 is provided with a thread 11, the anchor body 10 is divided into two halves along the length direction thereof by a first half screw 12 and a second half screw 13, a dovetail groove 121 is arranged along the length direction of the first half screw 12, and a dovetail block 131 is arranged along the length direction of the second half screw 13 and is matched with the dovetail groove 121 to slide; the screw rod pressing device is characterized by further comprising a steel cable 14, the end parts of the same ends of the first half screw rod 12 and the second half screw rod 13 are respectively provided with a pressing hole 15, the two ends of the steel cable 14 are respectively inserted into the pressing holes 15 of the first half screw rod 12 and the second half screw rod 13, and the two ends of the steel cable 14 are fixed with the pressing holes 15 in an interference fit mode or in a welding mode.
In the above structure, the anchor body 10 is divided into the first half screw 12 and the second half screw 13, the two are fixed with the dovetail groove 121 through the dovetail block 131, when it is installed, the two are separated by staggering each other, the first half screw 12 or the second half screw 13 is passed through the closed loop fixing point to be fixed, and then the two are aligned and fastened again, and the screw threads 11 of the first half screw 12 and the second half screw 13 are aligned, after the object to be fixed is installed, the nut (not shown in the figure) for fixing is screwed, and the double nut is used for locking in the opposite top way to realize the anti-dropping fixing, the two ends of the steel cable 14 are fixed with the pressing hole 15 in an interference fit manner or welded manner, and because the steel cable 14 is stressed, the anchor body 10 can still maintain good fixing reliability in the shaking state.
In this embodiment, a packing nut 16 is screwed on the thread 11 of the outer wall of the anchor body 10.
In the structure, for some special occasions, the position of the anchor body 10 needs to be controlled to avoid shaking, the tightening nut 16 is arranged after the anchor body 10 penetrates out of the through hole of the mounting position to tighten the tensioning steel cable 14, so that the anchor body 10 becomes a fixed point, and the structure is wide in application occasions and flexible and reliable to use.
In this embodiment, a tightening sleeve 17 is sleeved on the anchor body of the tightening nut 16 on the side facing the steel cable 14, and a support ring 171 is disposed at one end of the tightening sleeve 17 facing the tightening nut 16.
In the structure, the support ring 171 of tightening sleeve 17 supports with compelling nut 16 offsets, effectively reduce the axial tension that produces when compelling nut 16 screws, because the fixed position diameter that cable 14 passed differs, to some major diameter's fixed point, make the bend radius grow of cable 14 easily, the radial direction of cable 14 both ends to first half screw 12 and the half screw 13 pole of second produces the pulling force when causing to tighten up, influence the fixed firmness between cable 14 and pressfitting hole 15 easily, consequently set up tightening sleeve 17 and be convenient for in tightening sleeve 17 with cable 14 income, reduce the radial force that produces when cable 14 is taut.
In this embodiment, an inner chamfer 172 is provided at the junction between the end surface of the tightening sleeve 17 facing away from the end surface of the packing nut 16 and the inner hole.
In the above configuration, the inner chamfer 172 reduces the occurrence of scratches on the tightening sleeve 17 when the wire 14 is received in the tightening sleeve 17.
In this embodiment, the total length of the bendable portion of the steel cable 14 is greater than twice the total length of the anchor body 10, the first half screw 12 or the second half screw 13.
In the above structure, since the length of the first half screw 12 and the second half screw 13 that need to be staggered when the first half screw 12 and the second half screw 13 are staggered and separated from each other is equal to the length of the first half screw 12 and the second half screw 13 themselves, if the total length of the bendable portion of the cable 14 is too small, the first half screw 12 and the second half screw 13 cannot be completely staggered and separated due to the length limitation of the cable 14.
In this embodiment, a protective sleeve 18 is sleeved outside the steel cable 14.
In the above configuration, the protective jacket 18 provides protection to the cable 14, allowing the cable 14 to be stressed more evenly and also isolating a portion of the air, reducing the possibility of rusting and corrosion of the cable 14.
In this embodiment, the protecting sleeve 17 is a rubber sleeve.
In the structure, the rubber sleeve has the advantages of good elasticity, low price and good flexibility, and is convenient to bend along with the steel cable 14.
In this embodiment, the ends of the first half screw 12 and the second half screw 13, which are provided with the press holes 15, are polished rods 19 without threads 11, and the length of the polished rods 19 is not less than the depth of the press holes 15.
In the above structure, the polished rod 19 is disposed on the first half screw 12 and the second half screw 13 to avoid the weakening of the strength at the position of the press-fit hole 15 due to the screw thread 11.
In this embodiment, the cross-sectional profile of the pressing hole 15 of the first half screw 12 is smaller than the cross section of the first half screw 12; the cross section profile of the pressing hole 15 of the second half screw 13 is smaller than that of the second half screw 13.
In the structure, the wall thickness of the pressing hole 15 is ensured to be uniform, the consistency is good, and uniform stress is facilitated.
The invention has the beneficial effects that: the anchor body 10 is divided into a first half screw 12 and a second half screw 13, the first half screw 12 and the second half screw 13 are matched and fixed with a dovetail groove 121 through a dovetail block 131, when the anchor body is installed, the first half screw 12 and the second half screw 13 are separated by staggering the first half screw and the second half screw, the first half screw 12 and the second half screw 13 are aligned and buckled again after penetrating a closed loop fixing point needing to be fixed, a nut (not shown in the figure) for fixing is screwed after an object needing to be fixed is installed, and the anti-loosening fixing can be realized by utilizing the mode of double nut opposite jacking, two ends of a steel cable 14 are fixed with a pressing hole 15 in an interference fit mode or a welding mode, and the anchor body 10 can still keep good fixing reliability under a shaking state due to the stress of the steel cable 14.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and those modifications and variations assumed in the above are also considered to be within the protective scope of the present invention.
Claims (7)
1. The utility model provides a reinforcing bar anchor that draws, includes the anchor body, its characterized in that: the outer wall of the anchor body is provided with threads, the anchor body is divided into a first half screw and a second half screw along the length direction of the anchor body in a half-and-half way, a dovetail groove is formed in the dividing surface of the first half screw along the length direction of the first half screw, and a dovetail block which is arranged along the length direction of the second half screw and slides in a matching way with the dovetail groove is arranged on the dividing surface of the second half screw; the first half screw rod and the second half screw rod are provided with pressing holes at the same end part, two ends of the steel cable are respectively inserted into the pressing holes of the first half screw rod and the second half screw rod, and two ends of the steel cable are fixed with the pressing holes in an interference fit manner or in a welding manner; a packing nut is screwed on the thread of the outer wall of the anchor body; the total length of the bendable part of the steel cable is more than twice of the total length of the anchor body or the first half screw rod or the second half screw rod.
2. A rebar pulling anchor as defined in claim 1 wherein: and a tightening sleeve is sleeved on the anchor body of one side of the tightening nut, which faces the steel cable, and a support ring is arranged at one end of the tightening sleeve, which faces the tightening nut.
3. A rebar pulling anchor as defined in claim 2 wherein: an inner chamfer is arranged at the junction of the end surface of one end of the tightening sleeve, which is back to the tightening nut, and the inner hole.
4. A rebar pulling anchor as defined in claim 1 wherein: and a protective sleeve is sleeved outside the steel cable.
5. A rebar pulling anchor as claimed in claim 4 wherein: the protective sleeve is a rubber sleeve.
6. A rebar pulling anchor as defined in claim 1 wherein: and one ends of the first half screw rod and the second half screw rod, which are provided with the press fit holes, are polished rods without threads, and the length of each polished rod is not less than the depth of the press fit hole.
7. A rebar pulling anchor as defined in claim 1 wherein: the section contour of the pressing hole of the first half screw is smaller than that of the first half screw; the cross section profile of the pressing hole of the second half screw is smaller than that of the second half screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910761190.1A CN110468969B (en) | 2019-08-17 | 2019-08-17 | Steel bar anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910761190.1A CN110468969B (en) | 2019-08-17 | 2019-08-17 | Steel bar anchor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110468969A CN110468969A (en) | 2019-11-19 |
| CN110468969B true CN110468969B (en) | 2020-09-29 |
Family
ID=68511034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910761190.1A Active CN110468969B (en) | 2019-08-17 | 2019-08-17 | Steel bar anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110468969B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117718652A (en) * | 2024-02-18 | 2024-03-19 | 江苏新迅达不锈钢制品有限公司 | Stainless steel screw welding device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0965557A (en) * | 1995-08-23 | 1997-03-07 | Fujikura Ltd | Compression-type anchor clamp and method for fixing it to cable |
| CN2407125Y (en) * | 2000-02-23 | 2000-11-22 | 布鲁克（成都）工程有限公司 | Steel wire anchor shank |
| CN104005519B (en) * | 2014-05-20 | 2017-06-06 | 中国科学院水利部成都山地灾害与环境研究所 | A kind of anchor head locking part |
| CN104727487A (en) * | 2015-03-23 | 2015-06-24 | 天津大学 | Composite CFRP (Carbon Fibre Reinforced Polymer) tendon anchoring system |
| CN104695629B (en) * | 2015-03-23 | 2016-09-21 | 天津大学 | A kind of intermediate plate clipping anchorage of type CFRP muscle |
| CN105971288B (en) * | 2016-07-06 | 2018-04-06 | 中国京冶工程技术有限公司 | Integral type intermediate plate type anchor device structure device and its assemble method |
| CN109079677A (en) * | 2018-09-18 | 2018-12-25 | 重庆市江津钢模有限责任公司 | Plug-in type clamp device |
-
2019
- 2019-08-17 CN CN201910761190.1A patent/CN110468969B/en active Active
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| CN110468969A (en) | 2019-11-19 |
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