CN2110043U - Taper thread reinforcing join piece for extrusion sleeve - Google Patents
Taper thread reinforcing join piece for extrusion sleeve Download PDFInfo
- Publication number
- CN2110043U CN2110043U CN 91232791 CN91232791U CN2110043U CN 2110043 U CN2110043 U CN 2110043U CN 91232791 CN91232791 CN 91232791 CN 91232791 U CN91232791 U CN 91232791U CN 2110043 U CN2110043 U CN 2110043U
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- sleeve
- thread
- diameter
- reinforcing bar
- metal sleeve
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Abstract
The taper thread reinforcing join piece for extrusion sleeve used for the connection of construction steel bar of the utility model relates to two metal sleeves (1) and (2) which are equipped with a conical inner thread and a conical outer thread at one end. The end of the sleeve without thread is extruded on the end socket of the two steel bars (3) which need to be connected. The inner and outer threads on the sleeve (1) and (2) are screwed up in a matching means which realizes the butt jointing of the two steel bars. This method of connecting steel bars is easier in operation, faster in connection speed and more reliable in connection quality. The degree of firmness can exceed the firmness limit of steel bars. It is suitable for connection of I-IV grade steel bars with diameter between 16 mm and 50 mm.
Description
The utility model belongs to the mechanical connection member of reinforcing bar in the civil structural engineering.
Reinforcing steel bar machinery is connected with dual mode in the civil structural engineering at present.A kind of sleeve with two ends band same specification tapered thread links together two reinforcing bars again for the taper thread connected mode is about to the two end reinforced tapered threads that are processed into, and for example CN90202707.7 and the described content of US3850535 patent all belong to this class joint.This joint is owing to need in end reinforced processing tapered thread, and the reinforcing bar section is slackened, and bonding strength does not then reach the reinforcing bar ultimate strength.Another kind of for the extruding connected mode is about to two end reinforced insertion specialized barrel, by extruder casing deformation and reinforcing bar are bonded together.U.S. US3737975 and US3551999 patent are this type of connected modes, but its extrusion operation needs carry out on working face, and connection speed is slow, time-consuming taking a lot of work.
The purpose of this utility model is the deficiency that overcomes above-mentioned prior art, and connect and extruding is connected separately advantage in conjunction with taper thread, provide that a kind of connection speed is fast, strength of joint is high, simple to operate, be convenient to the guaranteed reinforcing steel bar machinery connector of factorial construction quality.
The purpose of this utility model is to realize like this.Select two metal sleeves that are used for connecting reinforcement according to the size of bar diameter.One end of a sleeve processes conical external screw thread, and an end of another sleeve processes conical internal thread.One end of the undressed screw thread of this two sleeve is squeezed in by extrusion equipment respectively needs the end reinforced of connection.During reinforcing bar to be connected, the inside and outside circle tapered thread of mating mutually by sleeve realizes the mechanical connection of reinforcing bar.In addition, the length of the outside diameter of two sleeves, intracavity diameter and extruded segment can be identical or inequality, so that connect with the reinforcing bar of diameter or the reinforcing bar of different-diameter.Adopt this kind sleeve, can to connect I, II, III and IV level diameter be the various notched barss of 50 millimeters of φ 16～φ and guarantee that connecting portion has very high intensity.
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Fig. 1 is the metal sleeve longitudinal plan.
Fig. 1 a is metal sleeve axis projection figure among Fig. 1.
Fig. 2 is the vertical half-sectional view of another metal sleeve.
Fig. 2 a is metal sleeve axis projection figure among Fig. 2.
Fig. 3 is that two sleeves are squeezed in the structure section schematic diagram on two reinforcing bars respectively.
Fig. 4 is a metal sleeve joint construction generalized section.
With reference to accompanying drawing, the utility model is made of metal sleeve (1), (2) and the required reinforcing bar that is connected (3).Inner chamber one end of a metal sleeve (1) has the little conical threaded holes of the big inside diameter of end diameter.One end external surface of another metal sleeve (2) has the big taper thread of the little inside diameter of end diameter.The length L 1 of metal sleeve (1) and (2) and L2 are respectively 3～6 times of institute's connecting reinforcement (3) diameter; Its external diameter D1 and D2 are respectively 1.4～2.0 times of reinforcing bar (3) diameter; D3 is less than outer diameter D 1 for sleeve (1) taper thread end diameter.D4 is greater than intracavity diameter d2 for sleeve (2) taper thread end diameter.1 °～17 ° of the cone angle 1 of sleeve (1), (2) and α 2 values; The length l 2 of the length l 1 of metal sleeve (1) internal cavity unthreaded portion and metal sleeve (2) outer round surface unthreaded portion is 2～5 times of institute's connecting reinforcement (3) diameter; The internal cavity diameter d 1 of corresponding l1 and the internal cavity diameter d 2 of corresponding l2 are 1.05～1.4 times of institute's connecting reinforcement (3) diameter.The circular cone internal and external threads pitch of metal sleeve (1), (2) is 1.0～5.0 millimeters, can be various thread forms, comprises triangle, trapezoidal, semicircle or rectangle.Screw thread can be left-handed, also will be being dextrorotation, but interconnective two metal sleeves (1), (2) inside and outside tapered thread, its thread form, pitch, cone angle, the direction of rotation on it wants consistent.Metal sleeve (1), (2) material therefor are carbon steel, low-alloy steel or other metal.During assembling, two reinforcing bars (3) that need to connect are inserted respectively in sleeve (1) and (2), apply mechanical force by overlap section l1 and the l2 of the powerful compression sleeve of lateral axis direction (1) and (2) with dedicated extruded equipment with reinforcing bar, make the sleeve plastic strain bond reinforcing bar (3), see Fig. 3.The extruding scope of sleeve (1) is in l1.The extruding scope of sleeve (2) is in l2.When reinforcing bar connects, the end reinforced male end that has that is extruded with metal sleeve (2) is inserted the end reinforced female end that has that is extruded with metal sleeve (1), tighten with the moment of torsion M that stipulates, these two net muscle (3) couple together at this point, see Fig. 4.Moment of torsion M is according to the diameter and the material of reinforcing bar, and value is 10～70 kilogram-meters.
The utility model is compared with existing machinery formula rebar connecting technology, and its advantage is as follows:
1, theoretical calculating and tension test show that bonding strength of the present utility model reaches the ultimate strength of institute's connecting reinforcement, satisfy the relevant requirement of China's building structure aspect relevant specification and countries in the world building structure standard.
2, the processing of sleeve is finished in machined factory, and quality guarantees easily. Extrusion operation between sleeve and reinforcing bar carries out at the workbench of reinforcing bar builder's temporary shed, and needn't be on construction surface on-the-spot extrusion operation, so splice can be prefabricated, constructability.
3, because extensive work is finished in factory, and it is a kind of simple assembling that on-the-spot reinforcing bar connects, so connection speed accelerates greatly, shortened the duration.
4, because the processing of sleeve is finished in machine, and sleeve is connected also very simple with the extruding of reinforcing bar, do not need special training, so the quality of joint guarantees easily, is convenient to industrialized civilization and constructs.
5, because the extrusion operation between sleeve and the reinforcing bar, and the reinforcing bar of job site connects each and only needs 2 workmans both can finish, so recruitment is few, and labor strength is low.
6, because can be prefabricated, an extruder just can satisfy the construction needs in a building site, so equipment investment is few, operates the time and labour saving, has very high comprehensive benefit.
Claims (9)
1, a kind of compression sleeve taper thread rebar connector that is used for the building iron connection, form by two metal sleeves (1), (2) and the reinforcing bar (3) that needs to be connected, an end that it is characterized in that a metal sleeve (1) has conical internal thread, and threadless position is on extruding bonds reinforcing bar (3) in required connection; One end of another metal sleeve (2) then has conical external screw thread, and threadless position is also on extruding bonds reinforcing bar (3) in required connection; It is to spin by the interior outer cone thread that mates mutually between metal sleeve (1) and the metal sleeve (2) to form that reinforcing bar (3) connects.
2, compression sleeve taper thread rebar connector according to claim 1, it is characterized in that the length L 1 of metal sleeve (1) (2) and L2 are respectively 3～6 times of institute's connecting reinforcement diameter, its external diameter D1 and D2 are respectively 1.4～2.0 times of reinforcing bar (3) diameter.
3, compression sleeve taper thread rebar connector according to claim 1, it is characterized in that metal sleeve (1) (2) bonds its length l 1 of position of reinforcing bar (3) and l2 through extruding and is respectively 2～5 times of institute's connecting reinforcement (3) diameter, the intracavity diameter d1 at this section position and d2 are respectively 1.05～1.4 times of institute's connecting reinforcement (3) diameter.
4, compression sleeve taper thread rebar connector according to claim 1 is characterized in that inner chamber one end of a metal sleeve (1) has the little tapered tread hole of the big inside diameter of end diameter, 1 °～17 ° of its cone angle 1 values.
5, compression sleeve taper thread rebar connector according to claim 1 is characterized in that an end external surface of another metal sleeve (2) has the big tapered tread of the little inside diameter of end diameter, 1 °～17 ° of its cone angle 2 values.
6, compression sleeve taper thread rebar connector according to claim 1, the thread pitch that it is characterized in that every metal sleeve is 1.0～5.0 millimeters, the form of thread can be triangle, trapezoidal, semicircle or rectangle, and screw thread can be left-handed, also can be dextrorotation.
7, compression sleeve taper thread rebar connector according to claim 1 is characterized in that the inside and outside circle tapered thread on metal sleeve (1), (2), and its thread form, pitch, cone angle, direction of rotation want consistent.
8, compression sleeve taper thread rebar connector according to claim 1, it is characterized in that reinforcing bar (3) is respectively l1 and l2 from the length of termination insertion metal sleeve (1) (2), sleeve (1) (2) is made the metal sleeve plastic strain by the powerful extruding of lateral axis direction and bond on reinforcing bar with mechanical force, the extruding scope of sleeve (1) (2) is respectively in l1 and in the l2.
9, compression sleeve taper thread rebar connector according to claim 1 is characterized in that metal sleeve (1) (2) material therefor can be carbon steel, low-alloy steel or other metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91232791 CN2110043U (en) | 1991-12-28 | 1991-12-28 | Taper thread reinforcing join piece for extrusion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91232791 CN2110043U (en) | 1991-12-28 | 1991-12-28 | Taper thread reinforcing join piece for extrusion sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2110043U true CN2110043U (en) | 1992-07-15 |
Family
ID=4937757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91232791 Granted CN2110043U (en) | 1991-12-28 | 1991-12-28 | Taper thread reinforcing join piece for extrusion sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2110043U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061513A (en) * | 2012-12-29 | 2013-04-24 | 华北水利水电学院 | Rebar mechanical anchoring method |
| CN107044193A (en) * | 2017-04-26 | 2017-08-15 | 上海核工程研究设计院 | A kind of pair of sleeve steel concrete supporting device |
| CN107829526A (en) * | 2017-11-08 | 2018-03-23 | 孟宪山 | Bridges in highway engineering pile foundation steel concrete supporting component and attaching method thereof |
-
1991
- 1991-12-28 CN CN 91232791 patent/CN2110043U/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061513A (en) * | 2012-12-29 | 2013-04-24 | 华北水利水电学院 | Rebar mechanical anchoring method |
| CN103061513B (en) * | 2012-12-29 | 2015-11-18 | 青海民族大学 | A kind of reinforcing steel bar machinery anchoring process |
| CN107044193A (en) * | 2017-04-26 | 2017-08-15 | 上海核工程研究设计院 | A kind of pair of sleeve steel concrete supporting device |
| CN107829526A (en) * | 2017-11-08 | 2018-03-23 | 孟宪山 | Bridges in highway engineering pile foundation steel concrete supporting component and attaching method thereof |
| CN107829526B (en) * | 2017-11-08 | 2018-12-21 | 广西长长路桥建设有限公司 | Bridges in highway engineering pile foundation steel concrete supporting component and attaching method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |