CN106284853A - Screw-thread steel plug-in type branch sleeve for building and using method thereof - Google Patents
Screw-thread steel plug-in type branch sleeve for building and using method thereof Download PDFInfo
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- CN106284853A CN106284853A CN201610826849.3A CN201610826849A CN106284853A CN 106284853 A CN106284853 A CN 106284853A CN 201610826849 A CN201610826849 A CN 201610826849A CN 106284853 A CN106284853 A CN 106284853A
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- sleeve
- thread
- screw
- trepanning
- sleeves
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The present invention relates to a kind of screw-thread steel plug-in type branch sleeve for building and using method thereof, it includes the first sleeve, the second sleeve, the 3rd sleeve, and the second sleeve is provided with internal thread hole, forms the big cylinder section of step portion cloth and little cylinder section outside the cylinder of the second sleeve;The trepanning of the first sleeve one section is female thread, and another section is the endoporus of the little cylinder section fit location with the second sleeve, and the cylinder of the first sleeve is externally provided with external screw thread;3rd sleeve is provided with the trepanning of the big cylinder section fit location with the second sleeve, and trepanning one end is provided with positive stop end, and positive stop end is provided with through hole, and the trepanning other end is provided with the female thread threadeded with the first sleeve.Using method is: by threaded for the female thread of a screw-thread steel and the first sleeve, another root screw-thread steel is threaded through the internal thread hole of through hole and the second sleeve, the little cylinder section of the second sleeve, big cylinder section are positioned with the first sleeve, the 3rd sleeve fit respectively, by the 3rd sleeve and the screw-threaded coupling of the first sleeve, i.e. complete quick, reliably dock.
Description
Technical field
The present invention relates to build the connector of screw-thread steel, be a kind of screw-thread steel plug-in type branch sleeve for building and use thereof
Method.
Background technology
In technical field of building construction, screw-thread steel connected mode is mainly overlapped by colligation, is mechanically connected and welds three kinds, its
What middle use was most is to be mechanically connected.The publication number CN101624854A published such as Chinese patent literature, publication date in January, 2010
13, invention entitled " a kind of reinforcement end reinforced large-diameter threaded connector and attaching method thereof ", it included screw rod, spiral shell
Set, the two ends of screw rod have outer straight thread respectively, have the interior straight thread matched with the outer straight thread on screw rod in swivel nut, screw rod
Outer straight thread spins the interior straight thread of swivel nut.Its method of attachment is, the identical screw rod identical with rotation direction of the diameter that the most alternately spins,
Swivel nut, thus complete steel reinforcement abutting joints.Although this kind of structures and methods are feasible, but it is primarily adapted for use in the docking of reinforcing bar level, for steel
When muscle vertically docks, then the longest due to the length of vertical reinforcement, the difficulty of centering is the biggest, is difficult to the operation that spins.And it is complete after docking
The full strength support relying on swivel nut, requires higher to swivel nut, and once swivel nut fracture, easily causes irreparable damage.
The Authorization Notice No. CN2690477Y that and for example Chinese patent literature is published, authorized announcement date on April 6th, 2005, real
Being " sleeve extruding and direct screw combined steel bar joint " with New Name, it is made up of half-thread formula sleeve and stud, half spiral shell
The first half section of stricture of vagina formula sleeve is inner screw sheath, and the second half section is extruded sleeve, is connected on steel bar end with the extruding of its extruded sleeve, stud
Two ends be threaded in respectively in the inner screw sheath of two half-thread formula sleeves of docking, thus realize the docking of reinforcing bar.And
By being threaded rotation direction, also can realize directly screwing stud and realize the docking of two half-thread formula sleeves, thus facilitate reinforcing bar
Docking.Although this kind of structure can realize the rapid abutting joint of reinforcing bar, but when equally existing vertical reinforcement docking, the more difficult assurance of centering,
It is difficult to the operation that spins, only relies on the strength support of stud simultaneously, it is clear that there is also the potential safety hazard of construction.
To this end, need existing steel reinforcement abutting joints structures and methods are improved.
Summary of the invention
For overcoming above-mentioned deficiency, it is an object of the invention to provide a kind of screw-thread steel plug-in type adapter sleeve for building to this area
Cylinder and using method so that it is solve existing homogeneous structure exist centering difficulty, docking operation is the most inconvenient, and joint quality and
The technical problem that intensity is difficult to ensure that.Its objective is to be achieved through the following technical solutions.
The technical scheme one of this screw-thread steel plug-in type branch sleeve for building: it include the first sleeve, the second sleeve, the 3rd
Sleeve;Its structural feature is that the trepanning of described second sleeve is the internal thread hole threadeded with screw-thread steel, the second sleeve
The outer big cylinder section forming step portion cloth of cylinder and little cylinder section;In the trepanning of described first sleeve one section is threadeded with screw-thread steel
Screw thread, another section is the endoporus of the little cylinder section fit location with described second sleeve, and the cylinder of the first sleeve is externally provided with external screw thread, and
External screw thread and described endoporus are in the most corresponding distribution of first set barrel dliameter;Described 3rd sleeve is provided with and the big cylinder of described second sleeve
The trepanning of section fit location, trepanning one end is provided with the positive stop end spacing to described big cylinder section end, and positive stop end is provided with for screw thread
Steel stretches into the through hole of this trepanning, and the trepanning other end is provided with the female thread that the external screw thread with described first sleeve is threadeded;Work as institute
State external screw thread and the female thread screw-threaded coupling of the 3rd sleeve of the first sleeve, and described second sleeve fit is positioned the first sleeve
With time in the 3rd sleeve, the second sleeve lock onto between the first sleeve and the 3rd sleeve, and the first sleeve, the second sleeve, the 3rd
Sleeve centering.This structure compared to existing technology, differs primarily in that and forms fit location between the first sleeve and the second sleeve, from
And the screw-thread steel making the first sleeve, the second sleeve each be connected forms pre-determined bit and connects, easily realize centering, recycle the 3rd
First sleeve and the second sleeve are locked by sleeve, thus connection is the most laborsaving, convenient, and single can realization operates, and docking effect
Rate is high.In addition, it is ladder cylinder section by the second sleeve design, thus when the female thread complete thread of the second sleeve connects screw thread
During steel, the screw-threaded coupling between described first sleeve and the 3rd sleeve is had by the screw fastening clamp force between screw-thread steel and the second sleeve
There is the effect strengthening locking so that screw-thread steel docking intensity and reliability are higher.
In such scheme one structure, described first sleeve cylinder is outer and the 3rd sleeve cylinder is externally provided with handling section, facilitates hands to twist behaviour
Make.
Technical scheme two: it includes first sleeve, two the second sleeves, two the 3rd sleeves;Its structural feature exists
Trepanning in described second sleeve is the internal thread hole threadeded with screw-thread steel, forms step portion cloth outside the cylinder of the second sleeve
Big cylinder section and little cylinder section;In the trepanning two ends of described first sleeve are the little cylinder section fit location of the second sleeve described with two
Hole, is external screw thread outside the cylinder of the first sleeve, and external screw thread and described endoporus are in the most corresponding distribution of first set barrel dliameter;Described 3rd
Sleeve is provided with the trepanning of the big cylinder section fit location with described second sleeve, and trepanning one end is provided with described big cylinder section end spacing
Positive stop end, positive stop end is provided with the through hole stretching into this trepanning for screw-thread steel, and the trepanning other end is provided with and described first sleeve
The female thread that external screw thread is threaded;When described first sleeve two ends and two the 3rd bush whorl lockings, and two second sets
Cylinder is time fit is positioned between the first sleeve and two the 3rd sleeves respectively, two the second sleeves lock onto respectively the first sleeve with
Between two the 3rd sleeves, and the first sleeve, the second sleeve, the 3rd sleeve centering.The program is the knot as such scheme one
Structure converts, owing to using double second sleeve and double 3rd tube-in-tube structures, and its docking intensity and highly reliable in scheme one.
In such scheme two structure, described 3rd sleeve cylinder is externally provided with handling section, facilitates hands to twist operation.
In such scheme one, scheme two structure, the endoporus of described first sleeve is taper hole, corresponding described second sleeve
Little cylinder section is taper.Position by taper will be formed between endoporus and the little cylinder section of the second sleeve of the first sleeve, not only make the
One sleeve and the second sleeve centering are the most reliable, and when the second sleeve and first set jacket casing close and push against, utilize the tensioner of taper
Principle, further enhances the screw-threaded coupling intensity between the first sleeve and the 3rd sleeve, promotes screw-thread steel docking intensity with reliable
Property.
The using method of such scheme one structure is: first by a screw-thread steel to be connected and described first sleeve
Screw thread complete thread connects, and then through described through hole, another root screw-thread steel to be connected is stretched into its trepanning by the 3rd cartridge exterior
In, and be connected with the internal thread hole complete thread of described second sleeve, the less cylinder section fit of the second sleeve is positioned first
In the endoporus of sleeve, by the big cylinder section fit location of the trepanning of the 3rd sleeve and the second sleeve, finally screw the 3rd sleeve, make the
The female thread of three sleeves and the external screw thread screw-threaded coupling of the first sleeve, until the second sleeve lock onto the first sleeve and the 3rd sleeve
Between, i.e. complete the docking of two screw-thread steels.
The using method of such scheme two structure is: first by a screw-thread steel to be connected along one of them the 3rd sleeve
Through hole stretch in its trepanning, and be connected with the internal thread hole complete thread of one of them the second sleeve, then by be connected
Another root screw-thread steel stretches in its trepanning along the through hole of another the 3rd sleeve, and complete with the female thread of another the second sleeve
Threaded, the less cylinder section fit respectively of two the second sleeves is positioned the endoporus at described first sleeve two ends, two
The big cylinder section fit respectively of two sleeves is positioned in the trepanning of two the 3rd sleeves, finally screws two the 3rd sleeves, makes two
The female thread of the 3rd sleeve respectively with the external screw thread screw-threaded coupling of the first sleeve, until two the second sleeves lock onto the first sleeve
And between two the 3rd sleeves, i.e. complete the docking of two screw-thread steels.
Such scheme one, scheme two using method in, two described screw-thread steels offset after docking, to improve screw-thread steel
The reliability of docking.
The present invention can realize screw-thread steel quick centring, docks more convenient, time saving and energy saving, and efficiency is high, and docking intensity and
Good reliability, is suitable as screw-thread steel for building and uses connecting connector, or the structure of similar connector is improved.
Accompanying drawing explanation
Fig. 1 is the present invention the first sleeve sectional structure schematic diagram.
Fig. 2 is the present invention the second sleeve sectional structure schematic diagram.
Fig. 3 is the present invention the 3rd sleeve sectional structure schematic diagram.
Fig. 4 is the present invention the first sleeve, the second sleeve, the sectional structure schematic diagram of the 3rd sleeve centering connection.
Fig. 5 is the structural representation that the present invention docks screw-thread steel, and in figure, the first sleeve, the second sleeve, the 3rd sleeve are made
Section view.
Fig. 6 is the improvement project structural representation of the present invention the first sleeve, the second sleeve.
Fig. 7 is the first sleeve sectional structure schematic diagram of improvement project of the present invention.
Fig. 8 is the first sleeve of improvement project of the present invention, the second sleeve, the sectional structure signal of the 3rd sleeve centering connection
Figure.
Sequence number and entitled in figure: 1, the first sleeve, 101, external screw thread, 102, endoporus, the 2, second sleeve, 201, big cylinder
Section, 202, little cylinder section, 203, internal thread hole, the 3, the 3rd sleeve, 301, through hole, 4, screw-thread steel.
Detailed description of the invention
In conjunction with accompanying drawing, the invention will be further described.
As Figure 1-4, this screw-thread steel plug-in type branch sleeve for building includes first sleeve the 1, second sleeve the 2, the 3rd
Sleeve 3;The trepanning of the second sleeve is the internal thread hole 203 threadeded with screw-thread steel 4, forms step portion outside the cylinder of the second sleeve
The big cylinder section 201 of cloth and little cylinder section 202.The trepanning of the first sleeve one section is the female thread threadeded with screw-thread steel, another section
Being the endoporus 102 of little cylinder section 202 fit location with the second sleeve, outer one section of the cylinder of the first sleeve is external screw thread 101, and outer spiral shell
Stricture of vagina is with endoporus 102 in the most corresponding distribution of first set barrel dliameter, and cylinder another section outer is handling section, facilitates hands to twist operation.3rd sleeve
Being provided with the trepanning of big cylinder section 201 fit location with the second sleeve, trepanning one end is provided with spacing spacing in big cylinder section 201 end
End, positive stop end is provided with the through hole 301 stretching in this trepanning for screw-thread steel 4, and the trepanning other end is provided with the outer spiral shell with the first sleeve
The female thread that stricture of vagina 101 is threaded.When external screw thread 101 and the female thread screw-threaded coupling of the 3rd sleeve 3 of the first sleeve, and second
When sleeve 2 fit is positioned in the first sleeve 1 and the 3rd sleeve 3, the second sleeve lock onto between the first sleeve and the 3rd sleeve,
And first sleeve, the second sleeve, the 3rd sleeve shaped in pairs in, i.e. three's axial line is positioned at same straight line.
As it is shown in figure 5, the using method of above-mentioned screw-thread steel plug-in type branch sleeve for building docking screw-thread steel is: first will
A screw-thread steel 4 to be connected is connected with the female thread complete thread of the first sleeve 1, then by another root screw-thread steel to be connected
Stretched in its trepanning by the outside via through holes 301 of the 3rd sleeve 3, and be connected with internal thread hole 203 complete thread of the second sleeve 2
(i.e. screw-thread steel 4 end be connected to internal thread hole 203 end face or through internal thread hole), the less cylinder by the second sleeve 2
Section 202 fits are positioned in the endoporus 102 of the first sleeve 1, the trepanning of the 3rd sleeve 3 and the big cylinder section 201 of the second sleeve are overlapped
Close location, finally screw the 3rd sleeve 3, make the female thread of the 3rd sleeve and external screw thread 101 screw-threaded coupling of the first sleeve 1, directly
It lock onto between the first sleeve 1 and the 3rd sleeve 3 to the second sleeve 2, i.e. complete the docking of two screw-thread steels 4.
It is the improvement project of the present invention as shown in Figure 7, Figure 8, is mainly improved by using two the second sleeves 2 and two
Three sleeves 3, and by the reconfiguration of the first sleeve 1 be: the trepanning two ends of the first sleeve are the little cylinder sections with two the second sleeves 2
The endoporus 102 of 202 fit location, is external screw thread 101 outside the cylinder of the first sleeve, and external screw thread and endoporus 102 is at first set barrel dliameter
Upwards corresponding distribution.The using method of program docking screw-thread steel is: first by a screw-thread steel 4 to be connected along one of them
The through hole 301 of the 3rd sleeve 3 stretches in its trepanning, and is connected with internal thread hole 203 complete thread of one of them the second sleeve 2
(i.e. screw-thread steel 4 end be connected to internal thread hole 203 end face or through internal thread hole), then by another root to be connected
Screw-thread steel stretches in its trepanning along the through hole of another the 3rd sleeve, and with the female thread complete thread of another the second sleeve even
Connect (i.e. screw-thread steel end be connected to internal thread hole end face or through internal thread hole), then little by two the second sleeves 2
Cylinder section 202 fit respectively is positioned the endoporus 102 at the first sleeve 1 two ends, the big cylinder section 201 of two the second sleeves 2 fit respectively
It is positioned in the trepanning of two the 3rd sleeves 3, finally screws two the 3rd sleeves 3, make the female thread of two the 3rd sleeves respectively
With external screw thread 101 screw-threaded coupling of the first sleeve 1, until two the second sleeves 2 lock onto the first sleeve 1 and two the 3rd sleeves
Between 3, i.e. complete the docking of two screw-thread steels 4.
As shown in Figure 6, the endoporus 102 of the first sleeve 1 also can be designed as taper hole, the little cylinder section of the second corresponding sleeve 2
202 are designed as taper, so that the first sleeve and the second sleeve centering are the most reliable, and when the second sleeve closes with first set jacket casing
When pushing against, utilize the tensioner principle of taper, further enhance the screw-threaded coupling intensity between the first sleeve and the 3rd sleeve, promote
Screw-thread steel docking intensity and reliability.
Such scheme one, scheme two using method in, two docking screw-thread steels 4 also can offset after docking, to carry
The reliability of high docking.
Above content is intended to illustrate the technological means of the present invention, and the technical scope of the unrestricted present invention.Art technology
Personnel combine existing common knowledge and are the present invention conspicuously improved, also fall into the claims in the present invention protection domain it
In.
Claims (8)
1. a screw-thread steel plug-in type branch sleeve for building, it includes the first sleeve (1), the second sleeve (2), the 3rd sleeve
(3);The trepanning that it is characterized in that described second sleeve (2) is the internal thread hole (203) threadeded with screw-thread steel (4), second
Big cylinder section (201) and the little cylinder section (202) of step portion cloth is formed outside the cylinder of sleeve;The trepanning of described first sleeve one section is and spiral shell
The female thread that stricture of vagina steel is threaded, another section is the endoporus (102) of the little cylinder section fit location with described second sleeve, first set
The cylinder of cylinder is externally provided with external screw thread (101), and external screw thread and described endoporus are distributed first set barrel dliameter is the most corresponding;Described 3rd set
Cylinder (3) is provided with the trepanning of the big cylinder section fit location with described second sleeve, and trepanning one end is provided with and limits described big cylinder section end
The positive stop end of position, positive stop end is provided with the through hole (301) stretching into this trepanning for screw-thread steel, and the trepanning other end is provided with and described first
The female thread that the external screw thread of sleeve is threaded;External screw thread and the female thread screw fastening of the 3rd sleeve when described first sleeve
Tightly, and when described second sleeve fit is positioned in the first sleeve and the 3rd sleeve, the second sleeve lock onto the first sleeve and
Between three sleeves, and the first sleeve, the second sleeve, the 3rd sleeve centering.
Screw-thread steel plug-in type branch sleeve for building the most according to claim 1, it is characterised in that described first sleeve (1)
Cylinder is outer and the 3rd sleeve (3) cylinder is externally provided with handling section.
3. a screw-thread steel plug-in type branch sleeve for building, it include first sleeve (1), two the second sleeves (2), two
Individual 3rd sleeve (3);The trepanning that it is characterized in that described second sleeve (2) is the internal thread hole threadeded with screw-thread steel (4)
(203) big cylinder section (201) and the little cylinder section (202) of step portion cloth, are formed outside the cylinder of the second sleeve;The trepanning of described first sleeve
Two ends are the endoporus (102) of the little cylinder section fit location of second sleeve described with two, are external screw thread outside the cylinder of the first sleeve
, and external screw thread and described endoporus are in the most corresponding distribution of first set barrel dliameter (101);Described 3rd sleeve is provided with and described second set
The trepanning of the big cylinder section fit location of cylinder, trepanning one end is provided with the positive stop end spacing to described big cylinder section end, and positive stop end is provided with
Stretch into the through hole (301) of this trepanning for screw-thread steel, the external screw thread that the trepanning other end is provided with described first sleeve is threadeded
Female thread;When described first sleeve two ends and two the 3rd bush whorl lockings, and two the second sleeve fit location respectively
Time between the first sleeve and two the 3rd sleeves, two the second sleeves lock onto respectively the first sleeve and two the 3rd sleeves it
Between, and the first sleeve, the second sleeve, the 3rd sleeve centering.
Screw-thread steel plug-in type branch sleeve for building the most according to claim 3, it is characterised in that described 3rd sleeve (3)
Cylinder is externally provided with handling section.
5. according to the screw-thread steel plug-in type branch sleeve for building described in claim 1 or 3, it is characterised in that described first sleeve
(1) endoporus (102) is taper hole, and the little cylinder section (202) of corresponding described second sleeve (2) is taper.
6. the using method of a screw-thread steel plug-in type branch sleeve for building as claimed in claim 1, it is characterised in that first
First a screw-thread steel (4) to be connected is connected, then by be connected with the female thread complete thread of described first sleeve (1)
Another root screw-thread steel is stretched in its trepanning through described through hole (301) by the 3rd sleeve (3) is outside, and with described second sleeve (2)
Internal thread hole (203) complete thread connect, less cylinder section (202) fit of the second sleeve is positioned the endoporus of the first sleeve
(102) in, by big cylinder section (201) the fit location of the trepanning of the 3rd sleeve and the second sleeve, finally screw the 3rd sleeve, make the
The female thread of three sleeves and external screw thread (101) screw-threaded coupling of the first sleeve, until the second sleeve lock onto the first sleeve and
Between three sleeves, i.e. complete the docking of two screw-thread steels.
7. the using method of a screw-thread steel plug-in type branch sleeve for building as claimed in claim 3, it is characterised in that first
First a screw-thread steel (4) to be connected is stretched in its trepanning along the through hole (301) of one of them the 3rd sleeve (3), and and its
In second sleeve (2) internal thread hole (203) complete thread connect, then by another root screw-thread steel to be connected along another
The through hole of individual 3rd sleeve stretches in its trepanning, and is connected with the internal thread hole complete thread of another the second sleeve, then by two
Little cylinder section (202) fit respectively of individual second sleeve is positioned the endoporus (102) at described first sleeve two ends, two the second sleeves
Big cylinder section (201) fit respectively be positioned in the trepanning of two the 3rd sleeves, finally screw two the 3rd sleeves, make two
The female thread of three sleeves respectively with external screw thread (101) screw-threaded coupling of the first sleeve, until two the second sleeves lock onto first
Between sleeve and two the 3rd sleeves, i.e. complete the docking of two screw-thread steels.
8. seek the using method of screw-thread steel plug-in type branch sleeve for building described in 5 or 7 according to right, it is characterised in that two
Screw-thread steel described in root (4) offsets after docking.
Priority Applications (1)
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CN201610826849.3A CN106284853A (en) | 2016-09-18 | 2016-09-18 | Screw-thread steel plug-in type branch sleeve for building and using method thereof |
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CN201610826849.3A CN106284853A (en) | 2016-09-18 | 2016-09-18 | Screw-thread steel plug-in type branch sleeve for building and using method thereof |
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CN201610826849.3A Pending CN106284853A (en) | 2016-09-18 | 2016-09-18 | Screw-thread steel plug-in type branch sleeve for building and using method thereof |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107100185A (en) * | 2017-05-18 | 2017-08-29 | 大成科创基础建设股份有限公司 | The attachment structure of assembled architecture stake pile foundation and cushion cap |
CN108824706A (en) * | 2018-07-06 | 2018-11-16 | 佛山市集知汇科技有限公司 | A kind of steel bar connecting structure |
WO2020082261A1 (en) * | 2018-10-24 | 2020-04-30 | 毛岩青 | Smart rebar connector |
CN112324056A (en) * | 2020-11-11 | 2021-02-05 | 徐瑞榕 | Mechanical connection joint for steel bars and connection method thereof |
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CN105464290A (en) * | 2015-12-10 | 2016-04-06 | 江苏金砼预制装配建筑发展有限公司 | Novel steel bar connection sleeve |
CN105518235A (en) * | 2013-09-09 | 2016-04-20 | 金龙根 | Socket fastening-type reinforcing bar connector using binding end member |
CN206070885U (en) * | 2016-09-18 | 2017-04-05 | 宁波博睿思特种材料科技有限公司 | Screw-thread steel plug-in type branch sleeve for building |
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KR101014543B1 (en) * | 2005-09-05 | 2011-02-14 | 김용근 | Reinforcing bar coupling with threaded sleeve |
CN101649668A (en) * | 2009-09-15 | 2010-02-17 | 魏勇 | Large diameter steel bar connecting sleeve |
CN105518235A (en) * | 2013-09-09 | 2016-04-20 | 金龙根 | Socket fastening-type reinforcing bar connector using binding end member |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107100185A (en) * | 2017-05-18 | 2017-08-29 | 大成科创基础建设股份有限公司 | The attachment structure of assembled architecture stake pile foundation and cushion cap |
CN108824706A (en) * | 2018-07-06 | 2018-11-16 | 佛山市集知汇科技有限公司 | A kind of steel bar connecting structure |
CN108824706B (en) * | 2018-07-06 | 2021-03-02 | 中湾建设集团有限公司 | Steel bar connecting structure |
WO2020082261A1 (en) * | 2018-10-24 | 2020-04-30 | 毛岩青 | Smart rebar connector |
CN112324056A (en) * | 2020-11-11 | 2021-02-05 | 徐瑞榕 | Mechanical connection joint for steel bars and connection method thereof |
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Application publication date: 20170104 |
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