CN109518886A - A kind of reinforcing bar connection type of double eccentric structures - Google Patents
A kind of reinforcing bar connection type of double eccentric structures Download PDFInfo
- Publication number
- CN109518886A CN109518886A CN201811386206.7A CN201811386206A CN109518886A CN 109518886 A CN109518886 A CN 109518886A CN 201811386206 A CN201811386206 A CN 201811386206A CN 109518886 A CN109518886 A CN 109518886A
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- Prior art keywords
- reinforcing bar
- bias
- bolt
- thread head
- eccentric
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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
-
- 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)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention belongs to technical field of civil engineering, and in particular to a kind of reinforcing bar connection type of double eccentric structures.It is made of silk nut, eccentric sleeve, bolt, outer sleeve inside and outside thread head reinforcing bar and bias.Wherein silk nut is equal with the eccentricity value of eccentric sleeve inside and outside bias；Bolt and eccentric sleeve tense, and hold out against with silk nut inside and outside bias, and silk nut and bolt socket cap tense inside and outside outer sleeve and bias；By silk nut inside and outside bias and the eccentric azimuthal adjustment of eccentric sleeve, the thread head reinforcing bar misaligned can be reliably connected.The thread head reinforcing bar rotated and movement is to be connected is not needed in connection procedure of the present invention, can be suitably used for the connection between two steel bar ends fixed simultaneously, the reinforcing bar that alignment deviation can will be present is attached, and jointing can bear pressure；Suitable for the reinforcing bar connection in various situations.
Description
Technical field
The invention belongs to technical field of civil engineering, and in particular to a kind of reinforcing bar connection type of double eccentric structures.
Background technique
It inevitably needs to carry out reinforcing bar connection during Construction of Civil Engineering, wherein for prefabricated member and component
Connection, steel reinforcement cage between exposed steel bar and the connection difficulty between steel reinforcement cage are higher, and mechanical connection is common connection type,
It has been widely used in prefabricated concrete structure and cast-in-situ steel reinforced concrete engineering, in bonding strength, speed of application, section
Energy environmental protection etc. has apparent advantage compared with conventional coupling arrangement.But different types of connector is by each in practical implementation
Kind applicability limitation, existing product are primarily present the following aspects deficiency: 1. various connectors are to the requirement of reinforcing bar accuracy of alignment
Relatively high, when prefabricated components or not high enough steel reinforcement cage machining accuracy, live off-position of steel reinforcing bar is larger, it is difficult to be connected using connector
It connects；2. common grout sleeve connector size is larger, it is unfavorable for reinforcing bar arrangement, and secondary grouting is needed to construct, difficulty of construction is big,
Grouting quality is difficult to ensure that construction quality is difficult to control and detection；Larger space is needed when 3. commonly squeezing sleeve attended operation,
It is required that bar spacing is larger, it is unfavorable for reinforcing bar arrangement；4. screw shell is rotated freely using sleeve and reinforcing bar, it is usually used in reinforcing bar
And the connection between the connection of reinforcing bar, reinforcing bar and prefabricated components, but be not suitable between component and component exposed steel bar connection,
Connection between steel reinforcement cage and steel reinforcement cage.
Summary of the invention
The purpose of the present invention is to provide a kind of reinforcing bar connection types of double eccentric structures.
The reinforcing bar connection type of double eccentric structures proposed by the present invention, by thread head reinforcing bar 1, thread head reinforcing bar 2, bias
Outer silk nut 3, eccentric sleeve 4, bolt 5, outer sleeve 6 form, and are made by steel, mounted configuration is as shown in Figure 1.
Wherein, thread head reinforcing bar 1, thread head reinforcing bar 2 are regular reinforcement, can be equal diameter reinforcing bar or non-equal diameter steel
Muscle can be various shape reinforcing bars, this illustrates attached drawing by taking equal diameter reinforcing bar as an example, and end processes screw thread or by the side such as welding
Formula increases thread segment, as shown in Figure 2；End thread processes corresponding specification by requirement of engineering, 1 He of thread head reinforcing bar when installation
2 axis of thread head reinforcing bar can be conllinear, also allows for certain misalignment of axe, and misalignment of axe is size A value in Fig. 2, deviation
Size A value is typically due to prefabricated components or steel reinforcement cage mismachining tolerance causes, permission inevitable in Practical Project, of the invention
Reinforcing bar misalignment of axe maximum value is Amax, as shown in Figure 8.
Internal and external threads are arranged in silk nut 3 inside and outside bias, there are eccentricity value B between internal and external threads axis, and B=0.5Amax,
Internal screw thread is matched with the screw thread of thread head reinforcing bar 1, and external screw thread is matched with the internal screw thread of outer sleeve 6, and prismatic surface is arranged in external left end,
The end of thread head reinforcing bar 1 is tightened in for spanner operation, as shown in Figure 3, Figure 4.
4 left end internal screw thread of eccentric sleeve is centrally arranged, there are eccentricity value B between right end screw thread and the left end axis of thread, and B
=0.5Amax, right end internal screw thread are matched with the screw thread of thread head reinforcing bar 2, and left end screw thread is matched with the screw thread of bolt 5, and outer surface is set
Prismatic surface is set, the end of thread head reinforcing bar 2 is tightened in for spanner operation, as shown in figs. 3 and 5.
Bolt 5 is half bolt of axially symmetric structure, and bolt head is socket cap, and prism section is arranged in screw rod middle section, is used for spanner
Operation is tightened in the left end of eccentric sleeve 4, as shown in Fig. 3, Fig. 6.
Outer sleeve 6 is axially symmetric structure sleeve, and internal screw thread is arranged in left end, and prismatic surface is arranged in outer surface overall length, is used for spanner
Operation is tightened in silk nut 3 inside and outside bias, and 5 socket cap of bolt is entangled in right end seal head section aperture, and aperture internal diameter is slightly larger than bolt 5
Screw diameter, as shown in Fig. 3, Fig. 7.
The screw thread of the external screw thread of silk nut 3 and outer sleeve 6 and other part hand of spiral inside and outside bias are on the contrary, as in bias
The external screw thread of outer silk nut 3 and the screw thread of outer sleeve 6 are left hand thread, remaining is right-handed thread；Such as silk nut 3 inside and outside bias
External screw thread and outer sleeve 6 screw thread be right-handed thread, remaining is left hand thread.
Installation process of the invention is as follows:
Silk nut 3 is tightened in thread head reinforcing bar 1 inside and outside bias, as shown in figure 12.
Eccentric sleeve 4 is tightened in thread head reinforcing bar 2,6 sets of outer sleeve on 5 left end socket cap of bolt, bolt 5 is tightened in partially
4 left end of heart sleeve, as shown in figure 13.
Two steel reinforcement cages or prefabricated part hanging belonging to thread head reinforcing bar 1, thread head reinforcing bar 2 is in place, reinforcing bar at this time
Generally there are length and misalignment of axes between each thread head reinforcing bar on cage or prefabricated components, are typically due to prefabricated components or reinforcing bar
Cage mismachining tolerance and installation error cause, measure misalignment of axe, as needing connection screw thread head reinforcing bar misalignment of axe no more than
Amax, error in length can then carry out next step connection, three kinds of relative position point in this connection type allowed band by root reinforcing bar
Situation.
Relative position one: when thread head reinforcing bar 1 and 2 misalignment of axe A=2B of thread head reinforcing bar.Inside and outside bias silk nut 3 and partially
Heart sleeve 4 reversely moves back silk respectively and rotates a certain angle, and the axis of bolt 5, outer sleeve 6 is made to be located at thread head reinforcing bar 1 and thread head
Among the axis of reinforcing bar 2, then the outer axis of silk nut 3, the 4 left end axis of thread of eccentric sleeve and bolt 5, outer sleeve inside and outside bias
6 axis is overlapped；Silk nut 3 and eccentric sleeve 4 reversely rotate angle and adjust within 360 degree inside and outside bias, must can reach with
Upper each axis Shaft alignment state, as shown in Fig. 8, Figure 14.
Relative position two: thread head reinforcing bar 1 and 2 axis zero deflection of thread head reinforcing bar, i.e. when A=0.Silk nut 3 inside and outside bias
It reversely moves back silk respectively with eccentric sleeve 4 and rotates a certain angle, make silk nut 3 outer axis, 4 left end spiral shell of eccentric sleeve inside and outside bias
Rod axis is overlapped with the axis of bolt 5, outer sleeve 6, and silk nut 3 is identical as itself eccentric direction of eccentric sleeve 4 inside and outside bias；
Silk nut 3 and eccentric sleeve 4 reversely rotate angle inside and outside bias must can reach above each axis Shaft alignment state within 360 degree,
As shown in Figure 9.
Relative position three: when thread head reinforcing bar 1 and 2 misalignment of axe A < 2B of thread head reinforcing bar.Inside and outside bias silk nut 3 and partially
Heart sleeve 4 reversely moves back silk respectively and rotates a certain angle, makes silk nut 3 outer axis, 4 left end screw shaft of eccentric sleeve inside and outside bias
Line is overlapped with the axis of bolt 5, outer sleeve 6；Silk nut 3 and eccentric sleeve 4 reversely rotate angle within 360 degree inside and outside bias
It can achieve two kinds of relativeness, be able to satisfy the above axis Shaft alignment state, it is as shown in Figure 10, Figure 11 respectively.
After outer sleeve 6 is aligned with silk nut 3 inside and outside bias, rotary sleeve cylinder 6 is connect with 3 part of silk nut inside and outside bias,
But it does not screw, exposes 5 middle edge shell of column of bolt, as shown in figure 15.
Using the fixed eccentric sleeve 4 of spanner, while bolt 5 is reversely rotated, until with 3 centering top of silk nut inside and outside bias
Tightly, as shown in figure 16.
Spanner rotary sleeve cylinder 6 is controlled using torsion, the socket cap of silk nut 3 inside and outside bias and bolt 5 is tensed, is completed
Connector installation of the present invention, the state being installed are as shown in Figure 1.
Beneficial effects of the present invention.
It is an advantage of the invention that the connection between eccentric reinforcing bar is applicable to, for reinforcing bar end in prefabricated components and steel reinforcement cage
The requirement on machining accuracy of head length and deviation is not high, guarantees that two end bars are reliably connected by connector itself fault tolerance；And
The reinforcing bar rotated and movement is to be connected is not needed during the connection process.It can greatly improve joint connection in site between component, steel reinforcement cage
Convenience.
Guarantee that connector meets reinforcing bar tension demand by outer sleeve 6 and the tension of bolt 5, inside and outside bolt 5 and bias
Silk nut 3, which is held out against, guarantees that connector meets reinforcing bar resistance to compression demand.
It is connected as full thread connection, flexible and convenient operation is installed, special equipment is not needed, it can also to the reinforcing bar intensively arranged
To be operated by root.
Connector size is small, arranges convenient for reinforcing bar, by improving connector steel strength, moreover it is possible to further control connector
Size.
Detailed description of the invention
Fig. 1 is connection status figure of the invention.
Fig. 2 is thread head reinforcing bar 1,2 relativeness schematic diagram of thread head reinforcing bar.
Fig. 3 is silk nut 3, eccentric sleeve 4, bolt 5, the two-way shaft side figure of outer sleeve 6 inside and outside bias.
Fig. 4 is 3 detail drawing of silk nut inside and outside bias.
Fig. 5 is 4 detail drawing of eccentric sleeve.
Fig. 6 is 5 detail drawing of bolt.
Fig. 7 is 6 detail drawing of outer sleeve.
Fig. 8 is thread head reinforcing bar 1 and 2 relative position of thread head reinforcing bar, one connection schematic diagram, and misalignment of axe is maximum allowable
Schematic diagram when eccentricity value, i.e. A=2B.
Fig. 9 is thread head reinforcing bar 1 and 2 relative position of thread head reinforcing bar, two connection schematic diagram, when axis zero deflection, i.e. A=0
Schematic diagram.
Figure 10 is thread head reinforcing bar 1 and 2 relative position of thread head reinforcing bar, three connection schematic diagram, and misalignment of axe is general value,
That is the first connection side's parallactic angle schematic diagram when A < 2B.
Figure 11 is thread head reinforcing bar 1 and 2 relative position of thread head reinforcing bar, three connection schematic diagram, and misalignment of axe is general value,
That is second of connection side's parallactic angle schematic diagram when A < 2B.
Figure 12 is one schematic diagram of installation steps.
Figure 13 is two schematic diagram of installation steps.
Figure 14 is three schematic diagram of installation steps.
Figure 15 is four schematic diagram of installation steps.
Figure 16 is five schematic diagram of installation steps.
Figure label: 1 is thread head reinforcing bar, and 2 be thread head reinforcing bar, and 3 be silk nut inside and outside bias, and 4 be eccentric sleeve, 5
It is outer sleeve for bolt, 6.
Specific embodiment
The invention is further illustrated by the following examples.
Embodiment 1, thread head reinforcing bar 1, thread head reinforcing bar 2 are the Ribbed Bar that diameter is 25, and end 35mm length is upset
Post-processing goes out M30 external screw thread, and thread head reinforcing bar 1,2 axis deviation of thread head reinforcing bar are not more than 6mm；Silk nut 3 is long inside and outside bias
Degree is 43mm, internal thread M30, filament length 33mm, and right end sealing, external screw thread is the anti-silk of M45, and filament length 33mm, left end outer surface is eight
Prismatic surface, circumscribed circle diameter 44mm, internal and external threads eccentricity 3mm；4 length of eccentric sleeve is 78mm, and left end internal thread is M30,
Filament length 45mm, right end internal thread are M30, and filament length 33mm, tapped eccentric is eight prismatic surfaces away from 3mm, outer surface, and circumscribed circle diameter is
48mm；5 length of bolt is 100mm, screw thread M30, filament length 45mm, left end socket cap outer diameter 42mm, length 14mm, screw rod middle part
Eight prism sections, circumscribed circle diameter 30mm are set；6 length of outer sleeve is 52mm, and internal diameter 43mm, outer surface is ten prismatic surfaces, outside
Connecing circular diameter is 55mm, and left end internal thread is the anti-silk of M45, filament length 30mm, right-end openings segment length 10mm, internal diameter 31mm；The above institute
There is part that can screw connection by common wrench；Referring to Fig.1 ~ Figure 14, the processing of the art and mounting technique personnel are equal
Can smoothly it implement.
The above, only one embodiment of the present invention, scope of protection of the present invention is not limited thereto, any right
Technical solution of the present invention and design are adjusted change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of reinforcing bar connection type of double eccentric structures, by silk nut 3 inside and outside thread head reinforcing bar 1, thread head reinforcing bar 2, bias,
The reinforcing bar connection type that eccentric sleeve 4, bolt 5, outer sleeve 6 form, each component are made by steel, installation side between each component
Formula is to be threadedly coupled；There are eccentricity value, internal screw thread and thread head reinforcing bars 1 to connect between 3 internal and external threads axis of silk nut inside and outside bias
It connects, external screw thread is connect with outer sleeve 6, and there are in eccentricity value, with bias between 4 right end screw thread of eccentric sleeve and the left end axis of thread
Eccentricity value between outer 3 internal and external threads axis of silk nut is equal, and right end screw thread is connect with thread head reinforcing bar 2, left end screw thread and spiral shell
Bolt 5 connects；Left end is held out against with silk nut 3 inside and outside bias after bolt 5 is adjusted, the outer spiral shell of silk nut 3 inside and outside 6 left end of outer sleeve and bias
Line connection, right end osseotomy site entangle 5 left end socket cap of bolt and screw.
2. the reinforcing bar connection type of double eccentric structures according to claim 1, characteristic are, silk nut 3 inside and outside bias,
Eccentric sleeve 4 is eccentric connector, by eccentric azimuthal adjustment, the thread head reinforcing bar 1 and thread head that can will be misaligned
Reinforcing bar 2 is connected by bolt 5, outer sleeve 6, and bonding strength can meet various requirement of engineering.
3. the reinforcing bar connection type of double eccentric structures according to claim 1, characteristic is, does not need in connection procedure
Rotation and mobile thread head reinforcing bar 1 to be connected, thread head reinforcing bar 2, can be suitably used in prefabricated components or steel reinforcement cage reinforcing bar and its
Connection between his all steel bar ends.
4. the reinforcing bar connection type of double eccentric structures according to claim 1, characteristic are, by Lengthened bolt 5 and
4 linkage section reach of eccentric sleeve, can eliminate the adverse effect of reinforcing bar error in length.
5. the reinforcing bar connection type of double eccentric structures according to claim 1, characteristic are, bolt 5 can in bias
It is held out against in 3 pairs of outer silk nut, makes jointing that can not only bear pulling force, pressure can also be born.
6. the reinforcing bar connection type of double eccentric structures according to claim 1, characteristic are, thread head reinforcing bar 1 and spiral shell
Line head reinforcing bar 2 can be equal diameter reinforcing bar or non-equal diameter reinforcing bar, and connection type of the present invention can be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811386206.7A CN109518886A (en) | 2018-11-20 | 2018-11-20 | A kind of reinforcing bar connection type of double eccentric structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811386206.7A CN109518886A (en) | 2018-11-20 | 2018-11-20 | A kind of reinforcing bar connection type of double eccentric structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109518886A true CN109518886A (en) | 2019-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811386206.7A Pending CN109518886A (en) | 2018-11-20 | 2018-11-20 | A kind of reinforcing bar connection type of double eccentric structures |
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| Country | Link |
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| CN (1) | CN109518886A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997271A (en) * | 2020-09-18 | 2020-11-27 | 建华建材（中国）有限公司 | Steel bar connecting device and using method thereof |
| CN113047529A (en) * | 2021-03-24 | 2021-06-29 | 长安大学 | Grouting sleeve inserted steel bar positioning device and using method thereof |
| CN113202232A (en) * | 2021-05-20 | 2021-08-03 | 班升诚业科技(上海)有限公司 | Mechanical connection and installation method for steel bars |
| CN113266108A (en) * | 2021-05-18 | 2021-08-17 | 班升诚业科技(上海)有限公司 | Method for connecting relatively staggered and fixing extending end of reinforcing steel bar |
-
2018
- 2018-11-20 CN CN201811386206.7A patent/CN109518886A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997271A (en) * | 2020-09-18 | 2020-11-27 | 建华建材（中国）有限公司 | Steel bar connecting device and using method thereof |
| CN113047529A (en) * | 2021-03-24 | 2021-06-29 | 长安大学 | Grouting sleeve inserted steel bar positioning device and using method thereof |
| CN113266108A (en) * | 2021-05-18 | 2021-08-17 | 班升诚业科技(上海)有限公司 | Method for connecting relatively staggered and fixing extending end of reinforcing steel bar |
| CN113202232A (en) * | 2021-05-20 | 2021-08-03 | 班升诚业科技(上海)有限公司 | Mechanical connection and installation method for steel bars |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190326 |
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| WD01 | Invention patent application deemed withdrawn after publication |