CN109339345B - Non-grouting sleeve for connecting prefabricated reinforced concrete pendant steel bars - Google Patents
Non-grouting sleeve for connecting prefabricated reinforced concrete pendant steel bars Download PDFInfo
- Publication number
- CN109339345B CN109339345B CN201811363846.6A CN201811363846A CN109339345B CN 109339345 B CN109339345 B CN 109339345B CN 201811363846 A CN201811363846 A CN 201811363846A CN 109339345 B CN109339345 B CN 109339345B
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- CN
- China
- Prior art keywords
- sleeve
- hole
- reinforced concrete
- nut
- clamping groove
- 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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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 title claims description 31
- 239000010959 steel Substances 0.000 title claims description 31
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 18
- 230000002787 reinforcement Effects 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 7
- 239000004567 concrete Substances 0.000 abstract description 4
- 239000002002 slurry Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000669 biting effect Effects 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention provides a non-grouting sleeve for connecting reinforced bars of a prefabricated reinforced concrete pendant, wherein a first reinforced bar and a second reinforced bar which are required to be connected and provided with a threaded structure are arranged between the pendants, the sleeve is provided with a first opening connected with the first reinforced bar and a second opening connected with the second reinforced bar, an anchor block is connected in the sleeve at the first opening, a hole and a clamping groove are arranged in the center of the anchor block, and a nut which can only move in the clamping groove is arranged in the clamping groove; the first reinforcing steel bar passes through the first opening and the hole and then is screwed into the nut. Through nut and anchor block for the reinforcing bar links to each other with the connecting sleeve, and then makes two reinforcing bars link to each other, and whole process all need not pour concrete slurry into in the sleeve, only need a spanner can. Due to the design of the holes and the clamping grooves, two reinforcing steel bars with the two axial center positions not completely coincident can be connected through adjusting the positions of the nuts on the clamping grooves.
Description
Technical Field
The invention relates to a connecting technology, in particular to a non-grouting sleeve for connecting reinforced bars of a prefabricated reinforced concrete pendant.
Background
The steel bars of the prefabricated reinforced concrete members are connected with various steel bar connection types such as lap joint connection, slurry anchor connection, welding, cold extrusion sleeve connection, taper thread connection, straight thread connection and the like.
The taper thread connection is realized by turning the rib stripping end head of the steel bar into taper threads and then using a taper thread sleeve. The straight thread connection is to directly roll the steel bar into a common straight thread after stripping the rib and then connect the steel bar by a special straight thread sleeve. The quick connector is stable and reliable in quality only by using a torque wrench to operate the quick connector on site, but the embedded component is required to be free from deviation, and the embedded component is difficult to realize in reality.
The grouting sleeve connection is to insert the steel bar into the special steel bar sleeve, then to inject the matched special high-strength quick-hardening non-shrinkage grouting material, and to produce the bonding and biting effect after the grouting material is hardened to realize the steel bar connection. The grouting sleeve joint has the advantages of simplicity in operation, reliable performance, wide applicability, simplicity and convenience in installation and the like, and can coordinate the axis deviation error of the PC member reinforcing steel bars through grouting, so that the grouting sleeve joint has the incomparable advantages of other reinforcing steel bar connection modes, and is widely used for the reinforcing steel bar connection of the PC member in a large number. However, the grouting sleeve connection is easy to have quality problems that part of grouting sleeve grouting materials are not full, grouting joint process inspection is not too close, and the like.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: and connecting the two steel bars with the deviation of the axial center positions on the precast reinforced concrete pendant in a non-grouting mode.
In order to solve the technical problems, the invention adopts the following technical scheme: a non-grouting sleeve for connecting reinforced concrete hanging parts with steel bars, wherein a first steel bar and a second steel bar which are required to be connected and provided with a threaded structure are arranged between the hanging parts, the sleeve is provided with a first opening connected with the first steel bar and a second opening connected with the second steel bar, an anchor block is connected at the first opening in the sleeve, a hole and a clamping groove are arranged at the center of the anchor block, and a nut which can only move in the clamping groove is arranged at the clamping groove; the first reinforcing steel bar passes through the first opening and the hole and then is screwed into the nut. Further, a cylinder with thread structures on the inner wall and the outer wall and opposite thread directions is arranged at the second opening in the sleeve, and the second reinforcing steel bars are connected with the second opening by screwing into the cylinder. Further, the inner caliber of the first opening gradually increases from outside to inside, and is shaped like a funnel; the anchor block outer profile is shaped like a cone. Further, the hole is a columnar cavity with an oblong bottom surface, the clamping groove is rectangular, and the first steel bar can eccentrically move in the hole and drive the nut to move in the clamping groove. Further, a gasket for fixing the first reinforcing steel bar is arranged at the hole. Further, the other end of the anchor block, which is opposite to the end with the hole, is also provided with two strip-shaped protrusions for preventing the nut from falling off the clamping groove. Further, the diameters of the first steel bars and the second steel bars are d, the length of the oblong shape of the bottom surface of the hole is L, and the width of the oblong shape of the bottom surface of the hole is W, wherein d+2mm is less than or equal to L and less than or equal to d+20mm, and d+0.1mm is less than or equal to W and less than or equal to d+10mm. Further, the length of the oblong shape of the bottom surface of the hole is l=d+10mm, and the width is w=d+2mm. Further, the sleeve is cylindrical. Further, the first opening end of the sleeve is in a horn shape, and the second opening end of the sleeve is in a cylinder shape.
The invention has the beneficial effects that: through nut and anchor block for the reinforcing bar links to each other with the connecting sleeve, and then makes two reinforcing bars link to each other, and whole process all need not pour concrete slurry into in the sleeve, only need a spanner can. Due to the design of the holes and the clamping grooves, two reinforcing steel bars with the two axial center positions not completely coincident can be connected through adjusting the positions of the nuts on the clamping grooves.
Drawings
The following details the specific construction of the present invention with reference to the accompanying drawings
Fig. 1 is a cross-sectional view through the central axis of a non-grouted sleeve for reinforcement connection of prefabricated reinforced concrete hangers according to the present invention.
Fig. 2 is a top view of a first open end of a non-grouted sleeve for a precast reinforced concrete pendant rebar junction according to the present invention.
Fig. 3 is a top view of a second open end of a non-grouted sleeve for a precast reinforced concrete pendant rebar junction according to the present invention.
Fig. 4 is a cross-sectional view through the central axis of another embodiment of a non-grouted sleeve for a precast reinforced concrete hanger bar connection according to the present invention.
The device comprises a 1-sleeve, a 2-first opening end, a 3-second opening end, a 4-first steel bar, a 5-second steel bar, a 6-anchor block, a 7-nut, an 8-protrusion, a 9-cylinder, a 10-thread structure and 11-holes.
Detailed Description
The most critical concept of the invention is as follows: and a nut arranged in the anchor block clamping groove is screwed on the steel bar by using a spanner so that the steel bar is connected with the sleeve.
In order to describe the technical content, the constructional features, the achieved objects and effects of the present invention in detail, the following description is made in connection with the embodiments and the accompanying drawings.
Referring to fig. 1, 2, 3 and 4, a non-grouting sleeve for connecting reinforcement bars of a precast reinforced concrete pendant is provided, a first reinforcement bar and a second reinforcement bar which are required to be connected and provided with a thread structure are arranged between the pendants, the sleeve is provided with a first opening connected with the first reinforcement bar and a second opening connected with the second reinforcement bar, an anchor block is connected in the sleeve at the first opening, a hole and a clamping groove are arranged at the center of the anchor block, and a nut which can only move in the clamping groove is arranged at the clamping groove; the first reinforcing steel bar passes through the first opening and the hole and then is screwed into the nut. Through nut and anchor block for the reinforcing bar links to each other with the connecting sleeve, and then makes two reinforcing bars link to each other, and whole process all need not pour concrete slurry into in the sleeve, only need a spanner can. Due to the design of the holes and the clamping grooves, two reinforcing steel bars with the two axial center positions not completely coincident can be connected through adjusting the positions of the nuts on the clamping grooves.
Further, a cylinder with thread structures on the inner wall and the outer wall and opposite thread directions is arranged at the second opening in the sleeve, and the second reinforcing steel bars are connected with the second opening by screwing into the cylinder. Before the anchor block and the nut enter the sleeve, the nut needs to be firstly arranged in the clamping groove of the anchor block outside the sleeve and then enters the sleeve through the second opening, so that a cylinder is introduced, the sleeve can be tightly connected with the second reinforcing steel bar through the cylinder, and meanwhile, the anchor block and the nut are convenient to assemble and disassemble. In addition, because the diameter of the second opening is larger than that of the second reinforcing steel bar, the wrench can conveniently enter the sleeve from the second opening to screw the nut.
Further, the inner caliber of the first opening gradually increases from outside to inside, and is shaped like a funnel; the anchor block outer profile is shaped like a cone. By combining the conical and funnel shapes with each other, the anchor block cannot leave the sleeve from the first opening, since the nut is connected with the first reinforcement, i.e. the first reinforcement is connected with the sleeve.
Further, the hole is a columnar cavity with an oblong bottom surface, the clamping groove is rectangular, and the first steel bar can eccentrically move in the hole and drive the nut to move in the clamping groove. Even the axis of first reinforcing bar and second reinforcing bar do not coincide each other, and no matter the axis of two reinforcing bars deviates with what kind of direction, utilize slotted hole design to make first reinforcing bar when first reinforcing bar is connected with the anchor block can skew the axis of anchor block, as long as adjust the range and the direction of skew anchor block axis, guarantee anchor block central line with the axis coincidence of second reinforcing bar, can make the sleeve can be further through two reinforcing bars are connected. The rectangular clamping groove ensures that the nut can only move back and forth along the clamping groove direction, and can not shake along any direction.
Further, a gasket for fixing the first reinforcing steel bar is arranged at the hole. After confirming the specific position of the nut on the anchor block, the gasket is plugged into the hole to fix the first reinforcing steel bar, so that the position of the nut in the clamping groove is prevented from moving.
Further, the other end of the anchor block, which is opposite to the end with the hole, is also provided with two strip-shaped protrusions for preventing the nut from falling off the clamping groove. Due to the protruding design, after the nut and the anchor block are arranged in the sleeve, the nut cannot be separated from the anchor block, namely, the phenomenon that the gasket falls off due to relative displacement between the anchor block and the nut is avoided.
Further, the diameters of the first steel bars and the second steel bars are d, the length of the oblong shape of the bottom surface of the hole is L, and the width of the oblong shape of the bottom surface of the hole is W, wherein d+2mm is less than or equal to L and less than or equal to d+20mm, and d+0.1mm is less than or equal to W and less than or equal to d+10mm. This size ensures the use requirements.
Further, the length of the oblong shape of the bottom surface of the hole is l=d+10mm, and the width is w=d+2mm. The size not only ensures the use requirement, but also ensures the anchor block to have extremely high mechanical strength.
Further, the sleeve is cylindrical. The sleeve has a simple structure and is easy to process.
Further, the first opening end of the sleeve is in a horn shape, and the second opening end of the sleeve is in a cylinder shape. The material usage of this sleeve is small compared to a cylindrical sleeve.
In summary, according to the non-grouting sleeve for connecting the prefabricated reinforced concrete pendant steel bars, the steel bars are connected with the connecting sleeve through the nuts and the anchor blocks, so that the two steel bars are connected, concrete grout does not need to be poured into the sleeve in the whole process, and only one wrench is needed. Even the axis of first reinforcing bar and second reinforcing bar do not coincide each other, and no matter the axis of two reinforcing bars deviates with what kind of direction, utilize slotted hole design to make first reinforcing bar when first reinforcing bar is connected with the anchor block can skew the axis of anchor block, as long as adjust the range and the direction of skew anchor block axis, guarantee anchor block central line with the axis coincidence of second reinforcing bar, can make the sleeve can be further through two reinforcing bars are connected. Before the anchor block and the nut enter the sleeve, the clamping groove is provided with a protrusion for preventing the nut from falling off, so that the nut needs to be firstly arranged in the clamping groove of the anchor block outside the sleeve. The funnel-shaped first opening and the conical anchor block are combined with each other, the anchor block cannot leave the sleeve from the first opening and needs to enter the sleeve through the second opening. And when the cylinder is introduced, the sleeve can be tightly connected with the second steel bar through the cylinder, the anchor block and the nut can be conveniently assembled and disassembled, and the spanner can conveniently enter the sleeve from the second opening to screw the nut. After confirming the specific position of the nut on the anchor block, the gasket is plugged into the hole to fix the first reinforcing steel bar, so that the position of the nut in the clamping groove is prevented from moving. The nut can only move back and forth along the clamping groove direction and cannot be separated from the anchor block, namely the phenomenon that the gasket falls off due to relative displacement between the anchor block and the nut can not occur.
The first and second … … are only names thereof, and do not represent differences in importance and position.
Here, upper, lower, left, right, front, and rear represent only their relative positions and do not represent their absolute positions
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (8)
1. The non-grouting sleeve for connecting the reinforced bars of the prefabricated reinforced concrete hanging parts is characterized in that an anchor block is connected in the sleeve at the first opening, a hole and a clamping groove are formed in the center of the anchor block, and a nut which can only move in the clamping groove is arranged at the clamping groove; the first reinforcing steel bar passes through the first opening and the hole and then is screwed into the nut;
the inner caliber of the first opening gradually increases from outside to inside, and is shaped like a funnel; the external profile of the anchor block is conical;
the hole is a columnar cavity with an oblong bottom surface, the clamping groove is rectangular, and the first steel bar can eccentrically move in the hole and drive the nut to move in the clamping groove.
2. The non-grouting sleeve for use in connection with reinforcement of prefabricated reinforced concrete hanger according to claim 1, wherein a cylinder having a screw structure on both inner and outer walls and having opposite screw directions is provided in the sleeve at the second opening, and the second reinforcement is connected to the second opening by screwing into the cylinder.
3. The non-grouted sleeve for rebar junctions of precast reinforced concrete hangers of claim 1, wherein a spacer is provided at the hole for securing the first rebar.
4. The non-grouting sleeve for the reinforcement connection of prefabricated reinforced concrete hanger according to claim 2, wherein the other end of the anchor block opposite to the end with the hole is further provided with two elongated protrusions for preventing the nut from falling off the clamping groove.
5. A non-grouted sleeve for rebar junctions in precast reinforced concrete hangers as recited in claim 3, wherein said first and second rebar diameters are d, said hole bottom oblong is L in length and W in width, wherein d+2mm.ltoreq.l.ltoreq.d+20mm, d+0.1mm.ltoreq.w.ltoreq.d+10mm.
6. The non-grouted sleeve for rebar junctions of precast reinforced concrete hangers of claim 4, wherein said hole bottom is oblong with a length L = d +10mm and a width W = d +2mm.
7. A non-grouted sleeve for use in the rebar junction of precast reinforced concrete hangers as in any one of claims 1 to 6, wherein said sleeve is cylindrical.
8. A non-grouted sleeve for use in connection with the reinforcement of prefabricated reinforced concrete hangers as defined in any one of claims 1-6, wherein said sleeve has a flared first open end and a cylindrical second open end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363846.6A CN109339345B (en) | 2018-11-16 | 2018-11-16 | Non-grouting sleeve for connecting prefabricated reinforced concrete pendant steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363846.6A CN109339345B (en) | 2018-11-16 | 2018-11-16 | Non-grouting sleeve for connecting prefabricated reinforced concrete pendant steel bars |
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| Publication Number | Publication Date |
|---|---|
| CN109339345A CN109339345A (en) | 2019-02-15 |
| CN109339345B true CN109339345B (en) | 2023-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811363846.6A Active CN109339345B (en) | 2018-11-16 | 2018-11-16 | Non-grouting sleeve for connecting prefabricated reinforced concrete pendant steel bars |
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| CN (1) | CN109339345B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388004A (en) * | 2019-08-20 | 2019-10-29 | 湖南远大工程设计有限公司 | A kind of universal reinforcing bar connection component |
| CN111255162A (en) * | 2020-03-11 | 2020-06-09 | 梁雪芽 | Semi-grouting sleeve assembly for fabricated building and construction method thereof |
| CN113235798B (en) * | 2021-05-21 | 2022-10-25 | 铜陵有色建安钢构有限责任公司 | Method for mounting assembled laminated slab |
| CN114645602B (en) * | 2022-05-23 | 2022-08-05 | 河北易达钢筋连接技术有限公司 | Improved generation thread connection sleeve device for prefabricated house |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3834731A1 (en) * | 1988-10-12 | 1990-04-19 | Dyckerhoff & Widmann Ag | Device for anchoring or connecting concrete reinforcement bars and process for producing the same |
| CN102261167A (en) * | 2011-05-05 | 2011-11-30 | 建研科技股份有限公司 | Adjustable type reinforcing bar threaded connection device |
| CN103669712A (en) * | 2013-12-03 | 2014-03-26 | 河南亚鹰钢结构幕墙工程有限公司 | Aerated concrete wallboard and external wallboard hanging structure thereof |
| CN206513387U (en) * | 2016-12-28 | 2017-09-22 | 中铁第四勘察设计院集团有限公司 | The exempting from of a kind of tunnel steel arch frame welds adjustable one-above-the-other layout |
| CN206545328U (en) * | 2017-02-28 | 2017-10-10 | 武钢集团昆明钢铁股份有限公司 | It is a kind of to adjust the reinforced high-strength degree attachment means in end reinforced gap |
| CN209369183U (en) * | 2018-11-16 | 2019-09-10 | 深圳海龙建筑科技有限公司 | A kind of non-grout sleeve for the connection of prefabricated reinforced concrete pendant reinforcing bar |
-
2018
- 2018-11-16 CN CN201811363846.6A patent/CN109339345B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3834731A1 (en) * | 1988-10-12 | 1990-04-19 | Dyckerhoff & Widmann Ag | Device for anchoring or connecting concrete reinforcement bars and process for producing the same |
| CN102261167A (en) * | 2011-05-05 | 2011-11-30 | 建研科技股份有限公司 | Adjustable type reinforcing bar threaded connection device |
| CN103669712A (en) * | 2013-12-03 | 2014-03-26 | 河南亚鹰钢结构幕墙工程有限公司 | Aerated concrete wallboard and external wallboard hanging structure thereof |
| CN206513387U (en) * | 2016-12-28 | 2017-09-22 | 中铁第四勘察设计院集团有限公司 | The exempting from of a kind of tunnel steel arch frame welds adjustable one-above-the-other layout |
| CN206545328U (en) * | 2017-02-28 | 2017-10-10 | 武钢集团昆明钢铁股份有限公司 | It is a kind of to adjust the reinforced high-strength degree attachment means in end reinforced gap |
| CN209369183U (en) * | 2018-11-16 | 2019-09-10 | 深圳海龙建筑科技有限公司 | A kind of non-grout sleeve for the connection of prefabricated reinforced concrete pendant reinforcing bar |
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| CN109339345A (en) | 2019-02-15 |
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Address after: 518083 No.8 Junzi Bu Xingfa Road, Guanlan Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: CSCEC Hailong Technology Co.,Ltd. Country or region after: China Address before: No. 8, junzi buxingfa Road, Guanlan street, Longhua District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN HAILONG BUILDING TECHNOLOGY Co.,Ltd. Country or region before: China |