CN204112606U - The branch sleeve of steel concrete supporting - Google Patents
The branch sleeve of steel concrete supporting Download PDFInfo
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- CN204112606U CN204112606U CN201420551928.4U CN201420551928U CN204112606U CN 204112606 U CN204112606 U CN 204112606U CN 201420551928 U CN201420551928 U CN 201420551928U CN 204112606 U CN204112606 U CN 204112606U
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- branch sleeve
- connecting reinforcement
- crimp segment
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Abstract
The utility model provides a kind of branch sleeve of steel concrete supporting, is processed with groove in one end mouth of pipe of described branch sleeve, and to form coarse section, coarse section of inner side is unthreaded hole section, common formation sleeve crimp segment, and the other end is formed with bush whorl linkage section; Connecting reinforcement to stretch in crimp segment and is crimped together with branch sleeve, and the radial dimension of the part that described connecting reinforcement is crimped reduces, and the external diameter of the termination that described connecting reinforcement is not crimped is constant and form an anchor head.The connecting reinforcement of described anchor head and crimp segment and the common bearing load of branch sleeve, make branch sleeve bearing capacity significantly improve.
Description
Technical field
The utility model relates to the structure of a kind of reinforcing steel bar connecting sleeve tube of connecting reinforcement in concrete structure building.
Background technology
When the reinforcing bar of existing concrete structure building adopts mechanical connection manner to connect, general employing straight screw sleeve connects or compression sleeve connects or taper thread sleeve connects, but there are some problems separately when implementing in the muff joint of these forms, such as: straight screw sleeve connects to be needed to process connecting thread respectively in the end of two connecting reinforcements, screwing steel bars screw thread can expend the longer time, artificial, equipment, cutting cutlery cost are higher; When compression sleeve is connected to job site operation, little, the lightweight hydraulic test of volume can only be used, connect the extruding action that a joint needs several times even tens times, just can complete this jointing, and sleeve dimensions is comparatively large, work efficiency is lower, the cost of joint is very high; Taper thread sleeve connects not only has straight screw sleeve to connect the problem needed at end reinforced processing connecting thread, also has the stressed reduced cross-sectional because reinforcing bar cuts, joint bonding strength cannot reach the intensity of reinforcing bar, the deficiency that performance is lower, modern architecture construction more and more payes attention to speed of application and build guality, these joints are constructed, and the manpower that takies is large or joint performance is poor, and therefore its effect is not ideal.
Summary of the invention
For the deficiencies in the prior art, main purpose of the present utility model is: the branch sleeve providing a kind of steel concrete supporting, solves the screw thread that existing straight thread or threaded coupling sleeve need processing two end bar, the problem that production efficiency is low or joint performance is poor.
Another object of the present utility model is: the branch sleeve providing a kind of steel concrete supporting, and solve squeeze flow crimping portion length long, the large usage quantity of steel, material cost is higher, the problem that joint connection in site work efficiency is low.
For achieving the above object, the technical solution adopted in the utility model is:
A branch sleeve for steel concrete supporting, is characterized in that:
Described branch sleeve is the metal tube that a center is provided with through hole, a wherein stomidium of described branch sleeve is inwall is processed with the groove of more than 2 or coarse section of projection, the inner side of described coarse section is provided with the unthreaded hole section consistent or close with coarse section of internal diameter size, described coarse section forms the sleeve crimp segment in order to connecting reinforcement termination jointly with unthreaded hole section, the inwall of another stomidium of branch sleeve is processed with connection internal thread from nose end to branch sleeve pars intermedia, to form bush whorl linkage section.
The branch sleeve of described steel concrete supporting, wherein: a connecting reinforcement stretches in sleeve crimp segment, when applying radial pressure outward in sleeve crimp segment and make sleeve crimp segment produce plastic strain, branch sleeve is crimped together with the connecting reinforcement inserting crimp segment, groove or the projection of sleeve crimp segment closely engage with the cross rib on connecting reinforcement and basic circle, the connecting reinforcement length inserting sleeve crimp segment is greater than sleeve outer diameter and exerts pressure and produce the length of plastic strain section, the radial dimension of the part that described connecting reinforcement is crimped reduces, and the external diameter of the termination that described connecting reinforcement is not crimped is constant and form an anchor head.
The branch sleeve of described steel concrete supporting, wherein: the internal thread hole of the described branch sleeve other end, has been processed to form externally threaded connecting reinforcement or connector or branch sleeve with end, together with being connected directly between with described internal thread by described external screw thread.
The branch sleeve of described steel concrete supporting, wherein: between described groove or protruding and described sleeve end face, also there is one section of relative smooth section, described relative smooth section is that roughness is less than the unthreaded hole of described groove or projection or coarse hole, and its internal diameter is greater than the internal diameter of described groove or projection.
The branch sleeve of described steel concrete supporting, wherein: the spacing of described groove or projection is within the scope of 1mm ~ 8mm.
For achieving the above object, the technical solution adopted in the utility model also comprises:
A branch sleeve for steel concrete supporting, is characterized in that:
One end of described branch sleeve is provided with centre bore, the aperture place of described centre bore inwall is processed with the groove of more than 2 or coarse section of projection, the inner side of described coarse section is provided with the unthreaded hole section consistent or close with coarse section of internal diameter size, and described coarse section forms the sleeve crimp segment in order to connecting reinforcement termination jointly with unthreaded hole section;
The other end of described branch sleeve is column structure, and the lateral surface of described column structure is processed with external screw thread, to form bush whorl linkage section.
The branch sleeve of described steel concrete supporting, wherein: a connecting reinforcement stretches in sleeve crimp segment, when applying radial pressure outward in sleeve crimp segment and make sleeve crimp segment produce plastic strain, branch sleeve is crimped together with the connecting reinforcement inserting crimp segment, groove or the projection of sleeve crimp segment closely engage with the cross rib on connecting reinforcement and basic circle, the connecting reinforcement length inserting sleeve crimp segment is greater than sleeve outer diameter and exerts pressure and produce the length of plastic strain section, the radial dimension of the part that described connecting reinforcement is crimped reduces, and the external diameter of the termination that described connecting reinforcement is not crimped is constant and form an anchor head.
The branch sleeve of described steel concrete supporting, wherein: the internal thread of the branch sleeve of described external screw thread and an aforementioned steel concrete supporting links together.
The branch sleeve of described steel concrete supporting, wherein: between described groove or protruding and described sleeve end face, also there is one section of relative smooth section, described relative smooth section is that roughness is less than the unthreaded hole of described groove or projection or coarse hole, and its internal diameter is greater than the internal diameter of described groove or projection.
The branch sleeve of described steel concrete supporting, wherein: the spacing of described groove or projection is within the scope of 1mm ~ 8mm.
Compared with prior art, the advantage adopting the utility model of technique scheme to have is: establish spacing to be only groove and the projection of spacing 1mm ~ 8mm in the pressure connection terminal first due to sleeve of the present invention, when sleeve is subject to radial compression power, the yield strength of connecting reinforcement can be met or exceeded after raised sections deform sclerosis and be partially submerged into reinforcing bar cross rib and basic circle, form the embedded tight engagement of larger area and strong bonded, and conventional extruded sleeve connection only relies on the cross rib on the plastic strain cladding reinforcing steel bar surface of sleeve to form tight engagement, the groove of this sleeve crimp segment or the spacing of projection are much smaller than the spacing of rebar surface cross rib, therefore pressure connection terminal can reach identical and connects effect with the connecting length shorter than conventional extruded branch sleeve, secondly, when connecting reinforcement is by pulling force, described anchor head external diameter is greater than the internal diameter being extruded the sleeve crimp segment diminished, during reinforcing bar tension, branch sleeve crimp segment and unthreaded hole section can form support force to affiliated anchor head, the combination that this crimping is connected to anchor connection makes the bonding strength of the reinforcing bar in sleeve and sleeve significantly improve, thus the supporting capacity of the bar splice that employing the method is formed significantly improves, 3rd, the other end of this sleeve is designed to straight thread, and connecting length that can be shorter is connected with the reinforcing bar or other connector being processed with connecting thread, reaches equicohesive effect with connecting reinforcement.So compare traditional crimp sleeve and connect, extrusion socket joint end size of the present utility model significantly shortens, while reduction material consumption, the demand to equipment extruding force also can be reduced; Compare traditional straight screw sleeve to connect, the utility model decreases the screw thread process of an end bar, by the crimping process screw thread process that instead of steel bar threaded joint and the two procedures be threaded, significantly improve connection production efficiency, reduce link cost; 2 sleeves of the present invention are used to be connected by external thread connector, or use internal thread branch sleeve of the present invention to be connected female connector cylinder connecting reinforcement with external screw thread, machining screw on reinforcing bar can be exempted, joint switching performance and reliability significantly improve, reach the object improving connection construction quality, therefore relative to traditional mechanical joining methods, the utility model connects work efficiency to minimizing material consumption, raising, ensures that joint quality of connection has significant effect.
Accompanying drawing explanation
Fig. 1 is the sectional structure chart of branch sleeve before crimping of the steel concrete supporting that the utility model provides;
Fig. 2 is the sectional structure chart of branch sleeve after crimping of the steel concrete supporting that the utility model provides;
Coarse section of the branch sleeve of the steel concrete supporting that Fig. 3 utility model provides near one section of sleeve end face for internal diameter be greater than inside the unthreaded hole of coarse section or the sectional structure chart in coarse hole;
Fig. 4 is the internal thread reinforcing steel bar connecting sleeve tube that provides of the utility model and the interconnective structural representation of external screw thread reinforcing steel bar connecting sleeve tube;
Fig. 5 is that two internal thread reinforcing steel bar connecting sleeve tubes that the utility model provides utilize two interconnective structural representation of screw threads for fastening screw;
Fig. 6 be the internal thread reinforcing steel bar connecting sleeve tube that provides of the utility model with connecting reinforcement directly with the structural representation be threaded;
Fig. 7 be the internal thread reinforcing steel bar connecting sleeve tube that provides of the utility model with anchor post directly with the structural representation be threaded.
Description of reference numerals: coarse section 1; Relative smooth section 10; Groove (or protruding) 11; The unthreaded hole (or coarse section) 10 of large diameter; Bush whorl linkage section 2; Internal thread 21; Column structure 22; Unthreaded hole section 3; Connecting reinforcement 4; Cross rib 41; Anchor head 42; Stud 51; Operating portion 52; Anchor post 6; Internal thread reinforcing steel bar connecting sleeve tube A; External screw thread reinforcing steel bar connecting sleeve tube B.
Detailed description of the invention
First, refer to shown in Fig. 1, the branch sleeve of the steel concrete supporting that the utility model provides, employing plasticity is good, yield strength is made lower than the metal material of connecting reinforcement yield strength, and it was tubulose before crimping, is processed with groove 11 (or protruding) in the mouth of pipe of one end, form coarse section 1, be processed with internal thread 21 in the other end mouth of pipe, form bush whorl linkage section 2, between coarse section 1 and bush whorl linkage section 2, be reserved with unthreaded hole section 3.Described coarse section 1 identical with the outside dimension of unthreaded hole section 3, internal diameter size is also identical or close, common forms sleeve crimp segment, and, described bush whorl linkage section 2 is through cold compression, and make its external diameter be less than the external diameter of unthreaded hole section 3, internal diameter is also less than the internal diameter of unthreaded hole section 3.
Consult again shown in Fig. 2, a connecting reinforcement 4 stretches in sleeve crimp segment, the length inserting the connecting reinforcement 4 of sleeve crimp segment is greater than the length producing plastic strain section of exerting pressure in sleeve outer diameter, then radial compression is carried out by the unthreaded hole section 3 of crimping machinery to coarse section 1 and part, connecting reinforcement 4 and branch sleeve are crimped together, now, the groove (or protruding) 11 of sleeve crimp segment closely engages with the cross rib on connecting reinforcement and basic circle, simultaneously, the radial dimension of the part that described connecting reinforcement is crimped reduces, and the external diameter of the termination that described connecting reinforcement is not crimped is constant, its external diameter be greater than be crimped part external diameter and form an anchor head 42, when connecting reinforcement 4 is by pulling force, described anchor head 42 is understood and the connecting reinforcement 4 at sleeve crimp segment place and the common bearing load of branch sleeve, its bearing capacity is significantly improved.
In the above-described embodiments, the spacing of described groove 11 (or protruding) is preferably 1mm ~ 8mm, and the length of described anchor head 42 is preferably greater than 3mm.
Refer to again shown in Fig. 3, described groove (or protruding) also has one section of relative smooth section 10 between 11 and described sleeve end face, described relative smooth section 10 can be roughness and is less than the unthreaded hole of described groove (or protruding) 11 or coarse hole, its internal diameter is greater than the internal diameter of described groove (or protruding) 11, this structure can make sleeve when crimp segment is extruded, suffered by the reinforcing bar of close sleeve ends, radial pressure is less, the unthreaded hole of this section of sleeve or the larger coarse pore structure of internal diameter compare the connecting reinforcement of joint inner sleeve crimp segment radial deformation at the radial deformation that rebar surface is formed is little, therefore also little to the damage of reinforcing bar appearance, be conducive to joint and bear fatigue load, and realize fatigue capacity close to or be equal to and be connected reinforcing bar.
Refer to Fig. 4, the internal thread reinforcing steel bar connecting sleeve tube A that provides of the utility model and the interconnective structural representation of external screw thread reinforcing steel bar connecting sleeve tube B, in figure, the branch sleeve in left side is consistent with the structure shown in Fig. 1, Fig. 2, because its bush whorl linkage section 2 is internal thread 21, can be described as internal thread reinforcing steel bar connecting sleeve tube A in this application; And in figure right side branch sleeve, then be called external screw thread reinforcing steel bar connecting sleeve tube B, it is compared with internal thread reinforcing steel bar connecting sleeve tube A, difference is: described branch sleeve one section of crimping with connecting reinforcement 4 is tubular structure, and the other end of branch sleeve is column structure 22, and external screw thread is processed with on the lateral surface of column structure 22, form described bush whorl linkage section 2.Thus, together with an internal thread reinforcing steel bar connecting sleeve tube A just can be connected directly between by bush whorl linkage section 2 with an external screw thread reinforcing steel bar connecting sleeve tube B.
Please continue to refer to Fig. 5, that two internal thread reinforcing steel bar connecting sleeve tube A that the utility model provides utilize two interconnective structural representation of screw threads for fastening screw, the two ends of described pair of screw threads for fastening screw are respectively equipped with stud 51, each stud 51 can be connected for forming screw threads for fastening with the bush whorl linkage section 2 of an internal thread reinforcing steel bar connecting sleeve tube A, the middle part of described pair of screw threads for fastening screw is provided with can for the operating portion 52 of spanner switching, and external screw thread direction on the stud 51 at the two ends of described pair of screw threads for fastening screw is preferably contrary, like this, by operating portion described in switching 52, what can complete that two ends are threaded tightening or unscrewing simultaneously.
Fig. 6 is that the internal thread reinforcing steel bar connecting sleeve tube A that the utility model provides is direct with the structural representation be threaded with connecting reinforcement 4, be directly be processed to form external screw thread in the end of connecting reinforcement 4, the bush whorl linkage section 2 of described external screw thread and internal thread reinforcing steel bar connecting sleeve tube A is together by a threaded connection.
Fig. 7 be the internal thread reinforcing steel bar connecting sleeve tube A that provides of the utility model with anchor post directly with the structural representation be threaded, be directly be processed to form external screw thread in the end of anchor post 6, the bush whorl linkage section 2 of described external screw thread and internal thread reinforcing steel bar connecting sleeve tube A is together by a threaded connection.
More than illustrate the utility model just illustrative; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claim limits; many amendments, change or equivalence can be made, but all will fall within protection domain of the present utility model.
Claims (10)
1. a branch sleeve for steel concrete supporting, is characterized in that:
Described branch sleeve is the metal tube that a center is provided with through hole, a wherein stomidium of described branch sleeve is inwall is processed with the groove of more than 2 or coarse section of projection, the inner side of described coarse section is provided with the unthreaded hole section consistent or close with coarse section of internal diameter size, described coarse section forms the sleeve crimp segment in order to connecting reinforcement termination jointly with unthreaded hole section, the inwall of another stomidium of branch sleeve is processed with connection internal thread from nose end to branch sleeve pars intermedia, to form bush whorl linkage section.
2. the branch sleeve of steel concrete supporting according to claim 1, it is characterized in that: a connecting reinforcement stretches in sleeve crimp segment, described sleeve crimp segment produces plastic strain under radial pressure, branch sleeve is crimped together with the connecting reinforcement inserted in crimp segment, groove or the projection of sleeve crimp segment closely engage with the cross rib on connecting reinforcement and basic circle, the connecting reinforcement length inserting sleeve crimp segment is greater than the length that sleeve crimp segment produces plastic strain section under radial pressure, the radial dimension of the part that described connecting reinforcement is crimped reduces, and the external diameter of the steel bar end that described connecting reinforcement is not crimped is constant and form an anchor head.
3. the branch sleeve of steel concrete supporting according to claim 1, it is characterized in that: the described branch sleeve other end, externally threaded connecting reinforcement or connector or another branch sleeve has been processed to form, together with being connected directly between with described internal thread by described external screw thread with end.
4. the branch sleeve of steel concrete supporting according to claim 1, it is characterized in that: between described groove or protruding and described sleeve end face, also there is one section of relative smooth section, described relative smooth section is that roughness is less than the unthreaded hole of described groove or projection or coarse hole, and its internal diameter is greater than the internal diameter of described groove or projection.
5. the branch sleeve of steel concrete supporting according to claim 1, is characterized in that: the spacing of described groove or projection is within the scope of 1mm ~ 8mm.
6. a branch sleeve for steel concrete supporting, is characterized in that:
One end of described branch sleeve is provided with centre bore, the aperture place of described centre bore inwall is processed with the groove of more than 2 or coarse section of projection, the inner side of described coarse section is provided with the unthreaded hole section consistent or close with coarse section of internal diameter size, and described coarse section forms the sleeve crimp segment in order to connecting reinforcement termination jointly with unthreaded hole section;
The other end of described branch sleeve is column structure, and the lateral surface of described column structure is processed with external screw thread, to form bush whorl linkage section.
7. the branch sleeve of steel concrete supporting according to claim 6, it is characterized in that: a connecting reinforcement stretches in sleeve crimp segment, described sleeve crimp segment produces plastic strain under radial pressure, branch sleeve is crimped together with the connecting reinforcement inserted in crimp segment, groove or the projection of sleeve crimp segment closely engage with the cross rib on connecting reinforcement and basic circle, the connecting reinforcement length inserting sleeve crimp segment is greater than the length that sleeve crimp segment produces plastic strain section under radial pressure, the radial dimension of the part that described connecting reinforcement is crimped reduces, and the external diameter of the steel bar end that described connecting reinforcement is not crimped is constant and form an anchor head.
8. the branch sleeve of steel concrete supporting according to claim 6, is characterized in that: the internal thread of the branch sleeve of described external screw thread and a steel concrete supporting according to any one of claim 1-5 links together.
9. the branch sleeve of steel concrete supporting according to claim 1, it is characterized in that: between described groove or protruding and described sleeve end face, also there is one section of relative smooth section, described relative smooth section is that roughness is less than the unthreaded hole of described groove or projection or coarse hole, and its internal diameter is greater than the internal diameter of described groove or projection.
10. the branch sleeve of steel concrete supporting according to claim 6, is characterized in that: the spacing of described groove or projection is within the scope of 1mm ~ 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551928.4U CN204112606U (en) | 2014-09-24 | 2014-09-24 | The branch sleeve of steel concrete supporting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551928.4U CN204112606U (en) | 2014-09-24 | 2014-09-24 | The branch sleeve of steel concrete supporting |
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| CN204112606U true CN204112606U (en) | 2015-01-21 |
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| CN201420551928.4U Active CN204112606U (en) | 2014-09-24 | 2014-09-24 | The branch sleeve of steel concrete supporting |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985093A (en) * | 2015-06-12 | 2015-10-21 | 中国核电工程有限公司 | Steel bar joint, axial extrusion device of steel joint, and steel bar connection method |
| CN105465122A (en) * | 2015-12-17 | 2016-04-06 | 周兆弟 | Crimp connection structure and crimp connection method |
| CN106723935A (en) * | 2016-12-16 | 2017-05-31 | 池州海琳服装有限公司 | Dryer cleaning brush with dog hole |
| CN112962866A (en) * | 2021-02-08 | 2021-06-15 | 佩克建筑配件(张家港)有限公司 | Expansion connecting sleeve group for reinforcing steel bar end and using method thereof |
| CN114482412A (en) * | 2022-01-19 | 2022-05-13 | 东南大学 | Umbrella buckle type connector for butt joint of steel bars between prefabricated bridge pier segments |
-
2014
- 2014-09-24 CN CN201420551928.4U patent/CN204112606U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985093A (en) * | 2015-06-12 | 2015-10-21 | 中国核电工程有限公司 | Steel bar joint, axial extrusion device of steel joint, and steel bar connection method |
| CN105465122A (en) * | 2015-12-17 | 2016-04-06 | 周兆弟 | Crimp connection structure and crimp connection method |
| CN106723935A (en) * | 2016-12-16 | 2017-05-31 | 池州海琳服装有限公司 | Dryer cleaning brush with dog hole |
| CN112962866A (en) * | 2021-02-08 | 2021-06-15 | 佩克建筑配件(张家港)有限公司 | Expansion connecting sleeve group for reinforcing steel bar end and using method thereof |
| CN114482412A (en) * | 2022-01-19 | 2022-05-13 | 东南大学 | Umbrella buckle type connector for butt joint of steel bars between prefabricated bridge pier segments |
| CN114482412B (en) * | 2022-01-19 | 2024-01-16 | 东南大学 | Umbrella buckle type connector for butt joint of reinforcing steel bars between precast pier segments |
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