CN1912303B - Reinfored bar rolling thread connector and connecting method - Google Patents
Reinfored bar rolling thread connector and connecting method Download PDFInfo
- Publication number
- CN1912303B CN1912303B CN2005100285882A CN200510028588A CN1912303B CN 1912303 B CN1912303 B CN 1912303B CN 2005100285882 A CN2005100285882 A CN 2005100285882A CN 200510028588 A CN200510028588 A CN 200510028588A CN 1912303 B CN1912303 B CN 1912303B
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- CN
- China
- Prior art keywords
- adapter sleeve
- thread
- reinfored
- screw thread
- bar rolling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Reinforcement Elements For Buildings (AREA)
Abstract
A rolled thread connection element of steel reinforcement is prepared as setting thread for connecting with steel reinforcement at one end of connection sleeve on said element, setting thread profile angle to be 75 degree and top height of thread to be 0.38-0.43 times of thread pitch, using one end of connection sleeve to connect said element with steel reinforcement through thread.
Description
[technical field]
The present invention relates to technical field of building construction, especially relate to a kind of reinfored bar rolling thread connector of super large standard for building.
[background technology]
Along with the development of building technology, the expansion of construction scope, the cloth muscle density of bar diameter, reinforcing bar is increasing.Past is subjected to the restriction of rebar connecting technology, and bar diameter is not seen in construction work greater than the big specification reinforcing bar of 40mm and used, and has influenced the raising of building level and the external output of building construction technology.Square being directly proportional of the intensity of reinforcing bar and diameter, and the bonding strength of individual pen screw thread is directly proportional with the diameter of thread, guarantee bonding strength, being threaded of big specification reinforcing bar must increase the connecting thread number of turns, this will increase and respectively enclose the stressed degree of irregularity of screw thread and stress and concentrate, and diameter is greatly limited greater than the use of the reinforcing bar of 40mm.
[summary of the invention]
Technical problem to be solved by this invention provides a kind ofly can overcome the deficiencies in the prior art, adapt to the reinfored bar rolling thread connector construction market demand, that can effectively connect greater than the reinforcing bar of 40mm diameter.The technical scheme that the present invention solves its technical problem employing is: a kind of reinfored bar rolling thread connector, has the threaded one end connecting reinforcement on its adapter sleeve at least, the tooth form angle of screw thread is 75 °, and the tooth height is 0.38～0.43 times of pitch and is preferred multiple with 0.41 times; There is the opposite screw thread of rotation direction each other at the two ends of adapter sleeve; The screw thread of adapter sleeve one end is greater than the screw thread of the other end, on the adapter sleeve with telescopic on external screw thread on the telescopic that is threaded that matches, the internal thread connecting reinforcement on the telescopic, external screw thread connects locking nut; One end of the relative reinforcing bar of adapter sleeve is fastenedly connected the steel member, and the steel member is i iron, channel-section steel; The close end of adapter sleeve has a groove at least.The present invention is owing to adopt technique scheme, right through actual specific, under the constant situation of pitch, when the form of thread angle is adjusted into 75 ° by 60 °, the thread shear strength is constant, flexural strength improves about 10%, the crushing strength of screw thread then is reduced to original 76%, because being the crushing strength of 60 ° screw thread, the tooth form angle has big affluence, after reducing the screw thread crushing strength, the intensity that is connected reinforcing bar still can reach the requirement of A level joint in the rules, solved the reinforcing bar connection difficult point of diameter greater than 40mm, and by changing the tooth form angle of connecting thread, the life-span of having improved the process equipment consumable accessory effectively, by the adapter sleeve of design special shape, reduced the stress that respectively encloses internal thread and concentrated, reduced link cost, improved quality of connection.
[description of drawings]
Below in conjunction with accompanying drawing and specific embodiments of the invention the present invention is described in further detail:
Fig. 1 to Fig. 6 is a structural representation of the present invention.
Fig. 7 only provides external screw thread for the enlarged drawing of screw thread of the present invention among the figure, internal thread and external screw thread coincide.
With reference to Fig. 1, Fig. 5, Fig. 6, Fig. 7.Has threaded one end connecting reinforcement 2 at least on the adapter sleeve 1 of the present invention, the tooth form angle 4 of screw thread 3 is 75 °, internal thread connecting reinforcement 2 on the telescopic 5, external screw thread connect locking nut 6 and with adapter sleeve 1 on the screw thread 3 that matches, one end of adapter sleeve 1 relative reinforcing bar 2 is fastenedly connected steel member 7, has groove 8 on the adapter sleeve 1.
[specific embodiment]
Embodiment 1: with reference to Fig. 1, Fig. 2.The present invention is for adapter sleeve, reinforcing bar, just the tooth form angle of (outward) screw thread of (interior) screw thread of adapter sleeve, reinforcing bar is designed to 75 °, tooth height and is designed to 0.38～0.43 times of pitch, and preferably the tooth height is 0.41 times of pitch.In force, as long as the reinforcing bar that spins in the one or both ends of adapter sleeve can reach goal of the invention of the present invention.
Embodiment 2: with reference to Fig. 3, Fig. 4.Present embodiment is designed to two sections (interior) screw threads of relative left and right sides rotation direction with adapter sleeve on the basis of embodiment 1, and about the reinforcing bar that rotation direction with it matches that spins respectively on (interior) screw thread.The external diameter of adapter sleeve two end bars can be identical, also can be different.
Embodiment 3: with reference to Fig. 5.In the present embodiment, the end of two sections (interior) screw threads of adapter sleeve left and right sides rotation direction directly is different, with two ends have respectively internal thread, externally threaded telescopic and with the external thread rotary of telescopic be connected on (interior) screw thread that matches with adapter sleeve, the internal thread of telescopic is screwed on (outward) screw thread of reinforcing bar, can adjust the length after reinforcing bar connects.
Embodiment 4: with reference to Fig. 6.In the special construction occasion, an end of adapter sleeve is screwed on the reinforcing bar, another section is welded on the side of steel member.The steel member can adopt i iron, channel-section steel etc.
Embodiment 5: referring to figs. 1 through Fig. 6.For reducing and even eliminating stress and the discontinuity situation that (inside and outside) among the present invention respectively enclosed screw thread in being threaded, adapter sleeve of the present invention is provided with a groove at least in the close end position, be used to adjust the rigidity of adapter sleeve, discharge the inhomogeneous concentrated stress of the present invention in connection.The size factor of the position of groove, quantity and width and the degree of depth can be determined according to designing requirement.
Claims (6)
1. a reinfored bar rolling thread connector has the threaded one end connecting reinforcement at least on its adapter sleeve, it is characterized in that: the tooth form angle of screw thread is 75 °, and the tooth height is 0.38～0.43 times of pitch.
2. a kind of reinfored bar rolling thread connector according to claim 1 is characterized in that: there is the opposite screw thread of rotation direction each other at the two ends of adapter sleeve.
3. a kind of reinfored bar rolling thread connector according to claim 2, it is characterized in that: the screw thread of adapter sleeve one end is greater than the screw thread of the other end, on the adapter sleeve with telescopic on external screw thread on the telescopic that is threaded that matches, internal thread connecting reinforcement on the telescopic, external screw thread connects locking nut.
4. a kind of reinfored bar rolling thread connector according to claim 1 is characterized in that: an end of the relative reinforcing bar of adapter sleeve is fastenedly connected the steel member.
5. a kind of reinfored bar rolling thread connector according to claim 4 is characterized in that: the steel member is i iron, channel-section steel.
6. according to each described a kind of reinfored bar rolling thread connector in the claim 1 to 5, it is characterized in that: the close end of adapter sleeve has a groove at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100285882A CN1912303B (en) | 2005-08-08 | 2005-08-08 | Reinfored bar rolling thread connector and connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100285882A CN1912303B (en) | 2005-08-08 | 2005-08-08 | Reinfored bar rolling thread connector and connecting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1912303A CN1912303A (en) | 2007-02-14 |
| CN1912303B true CN1912303B (en) | 2010-08-11 |
Family
ID=37721343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100285882A Expired - Fee Related CN1912303B (en) | 2005-08-08 | 2005-08-08 | Reinfored bar rolling thread connector and connecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1912303B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2182207Y (en) * | 1994-03-18 | 1994-11-09 | 吴南山 | Connector for reinforcing bar |
| CN2234320Y (en) * | 1995-06-24 | 1996-09-04 | 河北省高碑店市焊接设备厂 | Deformed steel bar connecting sleeve |
| EP0867578A1 (en) * | 1997-03-27 | 1998-09-30 | Barfix Bermuda Ltd | A method for connecting a connector to a concrete reinforcing bar and a connector to be connected to such bar |
| WO1999036642A1 (en) * | 1998-01-15 | 1999-07-22 | Johnson, Terence, Leslie | Connecting elongate members |
| EP1036893A1 (en) * | 1999-03-17 | 2000-09-20 | Ares S.A. | Screwed connection for threaded rods |
| JP4076148B2 (en) * | 2003-03-20 | 2008-04-16 | 株式会社リコー | Digital camera |
-
2005
- 2005-08-08 CN CN2005100285882A patent/CN1912303B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2182207Y (en) * | 1994-03-18 | 1994-11-09 | 吴南山 | Connector for reinforcing bar |
| CN2234320Y (en) * | 1995-06-24 | 1996-09-04 | 河北省高碑店市焊接设备厂 | Deformed steel bar connecting sleeve |
| EP0867578A1 (en) * | 1997-03-27 | 1998-09-30 | Barfix Bermuda Ltd | A method for connecting a connector to a concrete reinforcing bar and a connector to be connected to such bar |
| WO1999036642A1 (en) * | 1998-01-15 | 1999-07-22 | Johnson, Terence, Leslie | Connecting elongate members |
| EP1036893A1 (en) * | 1999-03-17 | 2000-09-20 | Ares S.A. | Screwed connection for threaded rods |
| JP4076148B2 (en) * | 2003-03-20 | 2008-04-16 | 株式会社リコー | Digital camera |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1912303A (en) | 2007-02-14 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20120808 |