CN111287386B - Mechanical connection device and steel bar connection method for steel bar part commercialized construction - Google Patents

Mechanical connection device and steel bar connection method for steel bar part commercialized construction Download PDF

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Publication number
CN111287386B
CN111287386B CN202010120439.3A CN202010120439A CN111287386B CN 111287386 B CN111287386 B CN 111287386B CN 202010120439 A CN202010120439 A CN 202010120439A CN 111287386 B CN111287386 B CN 111287386B
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thread
sleeve
threaded sleeve
steel bar
insert
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CN111287386A (en
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王开宇
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Beijing Wu Longxing Technology Development Co ltd
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Beijing Wu Longxing Technology Development Co ltd
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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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

The mechanical connecting device for the steel bar part-oriented construction is reliable in performance, simple in structure, convenient to connect and install, free of steel bar residual thread head exposure and remarkably improved in connection strength performance. The technical scheme is as follows: the thread cutting device comprises a first inner thread sleeve (1), a second inner thread sleeve (2) and an outer thread sleeve (3), and is characterized in that a lock nut (4) is arranged on the outer side of the outer thread sleeve (3), and the lock nut (4) is connected with the first inner thread sleeve (1); the pitch of the connecting threads (6) in the connecting ends of the outer sleeve (3) and the first inner threaded sleeve (1) and the second inner threaded sleeve (2) is different from the pitch of the connecting threads (5) in the first inner threaded sleeve (1) and the second inner threaded sleeve (2), the second inner threaded sleeve (2) is a common threaded sleeve or a weldable threaded sleeve, and the weldable threaded sleeve is used for connecting the steel bar and the section steel. The invention also discloses a steel bar connecting method.

Description

Mechanical connection device and steel bar connection method for steel bar part commercialized construction
Technical Field
The invention belongs to the field of reinforced concrete construction devices, and particularly relates to a mechanical connecting device and a reinforcing steel bar connecting method for the commercialized construction of reinforcing steel bar parts, which have the advantages of reliable performance, simple structure, convenience in connection and installation, no residual exposure of reinforcing steel bar thread heads and remarkably improved connection strength performance.
Background
Reinforcing bar net piece, the horizontal vertical reinforcing bar of steel reinforcement cage in the construction of reinforcing bar portion article all the rigid coupling, and any reinforcing bar of network deployment can't rotate. At present, the existing mechanical connection method cannot well connect the component reinforcing mesh and the reinforcing cage. In the construction industry standard JG 163-plus 2004 rolled straight thread steel bar connection joint of the people's republic of China, a locking female joint is adopted for the occasion that the steel bar cannot rotate, namely, the sleeve is completely screwed into the steel bar at one end, when the steel bar at the other end approaches, the sleeve is rotated reversely, the steel bar at the end is screwed into the sleeve, and then the front section of the screw thread is locked by the locking nut. This requires that the helix of the two lengths of rebar thread to be joined must be perfectly collinear, which is obviously difficult. Even if the connection is successful, the residual threads of a long section of steel bar are exposed, the steel bar can be broken from the exposed threads when being stressed and damaged, the connection strength of the steel bar is greatly weakened, and the whole safety of a building structure is not good. In addition, according to the installation regulation of the straight threaded joint in the JGJ 107-.
Disclosure of Invention
The invention aims to provide a mechanical connecting device and a steel bar connecting method for the steel bar part industrialized construction, which have the advantages of reliable performance, simple structure, convenient connection and installation, no exposed residual screw thread head of the steel bar and obviously improved connection strength performance.
The technical scheme of the invention is as follows: a mechanical connecting device for steel bar part commercialization construction comprises a first inner threaded sleeve (1), a second inner threaded sleeve (2) and an outer threaded sleeve (3), and is characterized in that a lock nut (4) is arranged on the outer side of the outer threaded sleeve (3), and the lock nut (4) is connected with the first inner threaded sleeve (1); wherein, the pitch of the internal connecting thread (6) at the connecting end of the outer thread sleeve (3) and the first internal thread sleeve (1) and the second internal thread sleeve (2) is different from the pitch of the internal connecting thread (5) of the first internal thread sleeve (1) and the second internal thread sleeve (2).
The second inner threaded sleeve (2) is a common threaded sleeve or a weldable threaded sleeve, wherein the weldable threaded sleeve is used for connecting the steel bars and the section steel.
The first inner thread sleeve (1), the second inner thread sleeve (2) and the outer thread sleeve (3) are in a circular, rectangular or polygonal shape.
The connecting thread is a triangular thread, a trapezoidal thread, a circular thread, a positive thread, a negative thread or a single-thread or multi-thread.
The method for connecting the straight threads of the reinforcing steel bars by using the mechanical connecting device for the commercialized construction of the reinforcing steel bar parts is characterized by comprising the following steps of:
step 1: firstly, sleeving a lock nut (4) into a first steel bar (7), and screwing a first inner threaded sleeve (1) and an outer threaded sleeve (3) into the root of the thread of the first steel bar (7);
step 2: screwing the second inner threaded sleeve (2) into the root of the thread of the second steel bar (8);
and step 3: screwing the outer thread sleeve (3) into the thread root of the second inner thread sleeve (2), and simultaneously driving the second inner thread sleeve (2) to be screwed into the thread root of the second steel bar (8);
and 4, step 4: and locking a lock nut (4).
Further comprising the steps of:
and 5: when the outer thread sleeve (3) cannot be smoothly screwed into the inner thread sleeve (2), the second inner thread sleeve (2) is rotated backwards to adjust the axial clearance between the outer thread sleeve (3) and the inner thread sleeve (2);
step 6: when the axial clearance between the outer thread sleeve (3) and the inner thread sleeve (2) is adjusted to a proper position, the outer thread sleeve (3) is smoothly screwed into the second inner thread sleeve (2);
and 7: the outer thread sleeve (3) is screwed tightly.
The invention has the following effects: the mechanical connecting device is used for the commercialized construction of the steel bar part, a lock nut is arranged on the outer side of the outer threaded sleeve, and the lock nut is connected with the first inner threaded sleeve; the thread pitch of the connecting threads in the connecting end of the outer thread sleeve, the first inner thread sleeve and the second inner thread sleeve is different from the thread pitch of the connecting threads in the first inner thread sleeve and the second inner thread sleeve.
The invention improves the prior art, can smoothly complete the connection of two reinforcing steel bars, and can also achieve no residual exposure of the thread head of the reinforcing steel bar, and a large number of tensile test results show that the reinforcing steel bar joint is completely broken from the base metal of the reinforcing steel bar, and the connection strength performance of the reinforcing steel bar is obviously improved.
The invention is further described below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is another schematic structural view of the present invention;
fig. 3 is a schematic view of a first rebar structure;
fig. 4 is a schematic view of a second rebar structure;
fig. 5-12 are schematic views showing the steps of the method for connecting the straight threads of the reinforcing bars according to the present invention.
Detailed Description
In fig. 1, a mechanical connecting device for the steel bar part commercialization construction comprises a first inner threaded sleeve 1, a second inner threaded sleeve 2 and an outer threaded sleeve 3, wherein a locking nut 4 is arranged on the outer side of the outer threaded sleeve 3, and the locking nut 4 is connected with the first inner threaded sleeve 1; wherein, the pitch of the internal connecting thread 6 at the connecting end of the external thread sleeve 3, the first internal thread sleeve 1 and the second internal thread sleeve 2 is different from the pitch of the internal connecting thread 5 of the first internal thread sleeve 1 and the second internal thread sleeve 2.
The second inner thread insert 2 is a common thread insert or a weldable thread insert, wherein the weldable thread insert is used for connecting the steel bar and the section steel (see fig. 2), 11 in fig. 2 is the section steel, and 12 is a welding opening.
The first inner thread insert 1, the second inner thread insert 2 and the outer thread insert 3 are in the form of a circle, a rectangle or a polygon. The connecting thread is a triangular thread, a trapezoidal thread, a circular thread, a positive thread, a negative thread or a single-thread or multi-thread.
In fig. 3, 7 is the first reinforcing bar and 9 is the threaded portion of the first reinforcing bar.
In fig. 4, 8 is a second reinforcing bar, and 10 is a threaded portion of the second reinforcing bar.
The method for connecting the straight threads of the reinforcing steel bars by using the mechanical connecting device for the commercialized construction of the reinforcing steel bar parts is characterized by comprising the following steps of:
in fig. 5, step 1: firstly, sleeving a lock nut 4 into a first steel bar 7, and screwing a first inner threaded sleeve 1 and an outer threaded sleeve 3 into a threaded root part 9 of the first steel bar 7;
in fig. 6, step 2: screwing the second inner threaded sleeve 2 into the thread root 10 of the second steel bar 8;
in fig. 7, step 3: screwing the outer thread sleeve 3 into the thread root of the second inner thread sleeve 2, and simultaneously driving the second inner thread sleeve 2 to be screwed into the thread root of the second steel bar 8;
in fig. 8, step 4: locking the lock nut 4.
Further comprising the steps of:
in fig. 9, step 5: when the outer thread sleeve 3 cannot be smoothly screwed into the inner thread sleeve 2, the second inner thread sleeve 2 is rotated backwards to adjust the axial clearance between the outer thread sleeve 3 and the inner thread sleeve 2;
in fig. 10, step 6: when the axial clearance between the outer thread sleeve 3 and the inner thread sleeve 2 is adjusted to a proper position, the outer thread sleeve 3 is smoothly screwed into the second inner thread sleeve 2;
in fig. 11, step 7: the outer jacket 3 is screwed down.
In fig. 12, the locking nut 4 is locked.

Claims (7)

1. A mechanical connecting device for steel bar part commercialization construction comprises a first inner threaded sleeve (1), a second inner threaded sleeve (2) and an outer threaded sleeve (3), and is characterized in that a lock nut (4) is arranged on the outer side of the outer threaded sleeve (3), and the lock nut (4) is connected with the first inner threaded sleeve (1); the pitch of the connecting threads (6) in the connecting ends of the outer sleeve (3) and the first inner threaded sleeve (1) and the second inner threaded sleeve (2) is different from the pitch of the connecting threads (5) in the first inner threaded sleeve (1) and the second inner threaded sleeve (2), the second inner threaded sleeve (2) is a common threaded sleeve or a weldable threaded sleeve, and the weldable threaded sleeve is used for connecting the steel bar and the section steel.
2. Mechanical connection for the commercialization of construction of steel reinforcement sections, according to claim 1, characterized in that the external shape of the first inner thread insert (1), the second inner thread insert (2) and the outer thread insert (3) is in the form of a circle, rectangle or polygon.
3. A mechanical connection device for the personalised construction of sections of steel reinforcement according to claim 1 or 2, characterised in that the connection thread between the external thread insert (3), the first internal thread insert (1) and the second internal thread insert (2) is a triangular, trapezoidal or circular thread.
4. A mechanical connection device for the commercialization of the construction of steel reinforcement sections according to claim 1 or 2, characterized in that the connection thread between the external thread insert (3), the first internal thread insert (1) and the second internal thread insert (2) is a positive or negative thread.
5. Mechanical connection for the commercialization of the construction of sections of steel reinforcement according to claim 1 or 2, characterized in that the connection thread between the external thread insert (3), the first internal thread insert (1) and the second internal thread insert (2) is a single or multiple thread.
6. Method for the straight threaded connection of reinforcing bars by means of a mechanical connection device for the commercialization of reinforcing bar sections according to one of claims 1 to 5, characterized in that it comprises the following steps:
step 1: firstly, sleeving a lock nut (4) into a first steel bar (7), and screwing a first inner threaded sleeve (1) and an outer threaded sleeve (3) into the root of the thread of the first steel bar (7);
step 2: screwing the second inner threaded sleeve (2) into the root of the thread of the second steel bar (8);
and step 3: screwing the outer thread sleeve (3) into the thread root of the second inner thread sleeve (2), and simultaneously driving the second inner thread sleeve (2) to be screwed into the thread root of the second steel bar (8);
and 4, step 4: and locking a lock nut (4).
7. The method for connecting a straight thread of a reinforcing bar using a mechanical connecting device for the commercialized construction of reinforcing bars of claim 6, further comprising the steps of:
and 5: when the outer thread sleeve (3) can not be smoothly screwed into the second inner thread sleeve (2), the second inner thread sleeve (2) is rotated backwards to adjust the axial clearance between the outer thread sleeve (3) and the second inner thread sleeve (2);
step 6: when the axial clearance between the outer thread sleeve (3) and the second inner thread sleeve (2) is adjusted to a proper position, the outer thread sleeve (3) is smoothly screwed into the second inner thread sleeve (2);
and 7: the outer thread sleeve (3) is screwed tightly.
CN202010120439.3A 2016-12-23 2016-12-23 Mechanical connection device and steel bar connection method for steel bar part commercialized construction Active CN111287386B (en)

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CN202010120439.3A CN111287386B (en) 2016-12-23 2016-12-23 Mechanical connection device and steel bar connection method for steel bar part commercialized construction

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CN202010120439.3A CN111287386B (en) 2016-12-23 2016-12-23 Mechanical connection device and steel bar connection method for steel bar part commercialized construction
CN201611207250.8A CN106499125A (en) 2016-12-23 2016-12-23 A kind of mechanical connecting device and connecting method for reinforcing bars for the construction of reinforcing bar componentization

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CN111287386B true CN111287386B (en) 2020-12-08

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CN201611207250.8A Pending CN106499125A (en) 2016-12-23 2016-12-23 A kind of mechanical connecting device and connecting method for reinforcing bars for the construction of reinforcing bar componentization

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111287386B (en) * 2016-12-23 2020-12-08 北京五隆兴科技发展有限公司 Mechanical connection device and steel bar connection method for steel bar part commercialized construction
CN107060219A (en) * 2017-03-29 2017-08-18 北京建筑大学 A kind of steel concrete supporting structure and method
CN109322445A (en) * 2018-11-24 2019-02-12 彭昊 A kind of steel bar connecting structure
CN110499870A (en) * 2019-08-12 2019-11-26 机械工业第六设计研究院有限公司 The connecting method for reinforcing bars of precast concrete crossbeam and precast concrete vertical member
CN111441537A (en) * 2020-05-18 2020-07-24 何文娟 Assembly type prefabricated part steel bar straight thread connecting device and connecting method thereof
CN112144760A (en) * 2020-08-20 2020-12-29 中建二局第一建筑工程有限公司 Reinforcing steel bar splicing structure
CN112324056A (en) * 2020-11-11 2021-02-05 徐瑞榕 Mechanical connection joint for steel bars and connection method thereof
CN113732212B (en) * 2021-08-24 2024-08-09 中交隧道工程局有限公司 Reinforcing steel bar mechanical butt joint assembly equipment and assembly method
CN115110700A (en) * 2022-06-30 2022-09-27 中铁二十局集团第一工程有限公司 Main rib threaded mechanical connection structure
CN117552583B (en) * 2023-11-10 2024-06-14 保定森源建筑机械有限责任公司 Adjustable connecting sleeve and reinforcement cage butt joint construction method

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CN206328957U (en) * 2016-12-23 2017-07-14 北京五隆兴科技发展有限公司 A kind of mechanical connecting device constructed for reinforcing bar componentization

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Publication number Priority date Publication date Assignee Title
CN101260724A (en) * 2008-04-18 2008-09-10 湖南大学 Double layer sleeve barrel steel bar connector and its reinforcing steel bar connection construction method
CN202117233U (en) * 2011-05-05 2012-01-18 建研科技股份有限公司 Adjustable rebar thread connection device
CN204531185U (en) * 2015-01-28 2015-08-05 青岛一建集团有限公司 A kind of adjustable reinforcing bar straight thread connector
CN106223480A (en) * 2016-09-28 2016-12-14 蒋文 Solderable scalable connects reinforcing bar and the sleeve arrangement of shaped steel and method of attachment
CN206328957U (en) * 2016-12-23 2017-07-14 北京五隆兴科技发展有限公司 A kind of mechanical connecting device constructed for reinforcing bar componentization

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CN106499125A (en) 2017-03-15
WO2018113473A1 (en) 2018-06-28
CN111287386A (en) 2020-06-16

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