CN202689349U - Reinforced rib straight thread attachment joint - Google Patents
Reinforced rib straight thread attachment joint Download PDFInfo
- Publication number
- CN202689349U CN202689349U CN 201220383630 CN201220383630U CN202689349U CN 202689349 U CN202689349 U CN 202689349U CN 201220383630 CN201220383630 CN 201220383630 CN 201220383630 U CN201220383630 U CN 201220383630U CN 202689349 U CN202689349 U CN 202689349U
- Authority
- CN
- China
- Prior art keywords
- connection sleeve
- straight thread
- reinforced rib
- threads
- thread attachment
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000000641 cold extrusion Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000009987 spinning Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241000282693 Cercopithecidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a reinforced rib straight thread attachment joint which comprises a reinforced wire head and a connection sleeve which are connected mutually. External threads are arranged on the wire head, internal threads are arranged on inner walls of the connection sleeve, and the reinforced wire head and the connection sleeve form a straight thread attachment section by mutual connection of the outer threads and the inner threads. The connection sleeve is formed in one-shot cold extrusion by cylindrical seamless steel tubes, the outer surface of the connection sleeve is of an abnormal-shaped polygon prism shape, the inner walls of the connection sleeve are round holes with reduced diameters, and therefore the connection sleeve can be directly machined to be the internal threads capable of being connected with reinforced rib tip threads in spinning mode. Due to the fact that the connection sleeve is of the polygon prism in shape, when a user screws the connection sleeve down with pipe tongs, the connection sleeve does not slip and can be fixedly connected by a movable wrench and a solid wrench. Thus, the reinforced rib straight thread attachment joint can have advantages of existing products and also can overcome defects of the existing products. The reinforced rib straight thread attachment joint can improve technical characteristics, enables the connection operation to be convenient and reliable and achieves the purpose of high quality, high efficiency and low consumption.
Description
Technical field
The utility model relates to a kind of rolling bar straight thread connector, particularly a kind of Ribbed Bar rounding rolling straight thread jointing for construction work.
Background technology
The thread rolling bar connection joint of China's building field extensive use is " by the joint of the direct rolling of steel bar end or the stripping latter made straight thread of rib and the formation of connector threaded engagement." (" reinforcing steel bar machinery connection universal technical specification " JGJ107-2010P26) with the termination straight thread of the direct rolling of Ribbed Bar can with the mother metal equal strength; but tensile strength still might be destroyed at joint in detecting and exposes on the thread; and rolling ends screw thread form is more complete behind the reinforcing steel bar rib-stripping; the cylindrical die roll long service life, but has increased the loss of rib peeling knife tool; And the steel bar end screw thread can't reach and the mother metal equal strength, stretches all to destroy when detecting exposing the thread place.
The profile of connector one straight thread connecting sleeve of steel bar end screw thread all is column type at present, and its material all is bar or the seamless tubular goods of structural carbon steel.Because steel standard yield strength has been lower than the yield strength of HRB400 grade reinforcing steel, moreover, the steel bar end thread is that rolling forms, the intensity of thread part improves, therefore sleeve thread yield strength with it minus tolerance is very large, the sleeve teeth were just yielding even cut off when joint stretched, and whole joint distortion increased even steel bar end is extracted from sleeve, reduced the joint quality of connection.In addition, smooth cylindrical straight thread barrel is unfavorable for that pipe wrench tightens, and easily skids during operation, both the dangerous joint quality of connection that also diminishes.
The utility model content
The purpose of this utility model is to provide a kind of reinforced bar straight thread joint, the advantage that can keep existing product can be avoided its defective again, not only improves the technical performance of jointing comprehensively, also make attended operation convenient and reliable, reach high-quality, efficient, low consumption purpose.
A kind of reinforced bar straight thread joint of the utility model comprises interconnective steel bar head and branch sleeve, and the silk head is provided with external screw thread, and the branch sleeve inwall is provided with internal thread.
Described steel bar head and branch sleeve interconnect and form a straight thread linkage section by external screw thread and internal thread;
Described branch sleeve is with column type seamless steel pipe once cold extrusion pressing formation, and external surface is different in nature six ribs or multiedge cylinder, and inwall is the circular hole of contracting warp, directly is processed into thus the internal thread that can screw mutually with the steel bar end screw thread;
Described branch sleeve profile multiedge cylinder is well-regulated concavo-convex adjacent alternate special-shaped shape for lugs, and the highest raised points A of sleeve cross section appearance is no less than 4, and depression points B is no less than 8, and the butt joint center of circular hole is symmetrical, even on corresponding concentric circumference distributes; Between raised points and depression points by being connected with the corresponding identical curve of each point or broken line.
Apply external force on the outer wall of the branch sleeve on the described straight thread linkage section, make the internal thread of branch sleeve and the external screw thread of steel bar head form two crimp sections, the external screw thread in the described crimp section forms destructive the connection with internal thread through extruding.
The beneficial effects of the utility model are: branch sleeve profile multiedge cylinder, laborsaving when tightening with pipe wrench, can not skid, can also be fastenedly connected with monkey wrench, fork spanner, the advantage that can keep existing product can be avoided its defective again, not only improves the technical performance of jointing comprehensively, also make attended operation convenient and reliable, reach high-quality, efficient, low consumption purpose.
Description of drawings
Accompanying drawing 2 is the cross section view of branch sleeve of the present utility model;
Accompanying drawing 3 is the cross section view of branch sleeve of the present utility model;
Accompanying drawing 4 is the longitudinal section sectional view of joint of the present utility model.
Label declaration: 1-steel bar head; The 2-branch sleeve; 3-straight thread linkage section; The A-raised points; The B-depression points.
The specific embodiment
By describing technology contents of the present utility model, structural feature in detail, being realized purpose and effect, below in conjunction with embodiment and cooperate accompanying drawing to give in detail explanation.
With reference to accompanying drawing 1-4, the utility model shown in the accompanying drawing provides a kind of reinforced bar straight thread joint, comprises interconnective steel bar head 1 and branch sleeve 2, and silk 1 is provided with external screw thread, and branch sleeve 2 inwalls are provided with internal thread.
Described steel bar head 1 interconnects and forms a straight thread linkage section 3 with branch sleeve 2 by external screw thread and internal thread;
As shown in Figure 2, described branch sleeve 2 usefulness column type seamless steel pipe once cold extrusion pressing formations, external surface is different in nature multiedge cylinder, inwall is the circular hole of contracting warp, directly is processed into thus the internal thread that can screw mutually with the steel bar end screw thread;
Described branch sleeve 2 profile multiedge cylinders are well-regulated concavo-convex adjacent alternate special-shaped shape for lugs, the highest raised points A of sleeve cross section appearance is no less than 4, depression points B is no less than 8, and the butt joint center of circular hole is symmetrical, even on corresponding concentric circumference distributes; Between raised points A and depression points B by being connected with the corresponding identical curve of each point or broken line.
Apply external force on the outer wall of the branch sleeve on the described straight thread linkage section 3, make the internal thread of branch sleeve and the external screw thread of steel bar head form two crimp sections, the external screw thread in the described crimp section forms destructive the connection with internal thread through extruding.
As shown in Figure 3, branch sleeve column type seamless steel pipe once cold extrusion pressing formation, external surface is different in nature hexagonal prism.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model manual and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (3)
1. a reinforced bar straight thread joint is characterized in that, comprises interconnective steel bar head and branch sleeve, and the silk head is provided with external screw thread, and the branch sleeve inwall is provided with internal thread; Steel bar head and branch sleeve interconnect and form a straight thread linkage section by external screw thread and internal thread.
2. a kind of reinforced bar straight thread joint according to claim 1 is characterized in that, the branch sleeve external surface is hexagonal prism.
3. a kind of reinforced bar straight thread joint according to claim 1 is characterized in that, the branch sleeve external surface is multiedge cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383630 CN202689349U (en) | 2012-08-06 | 2012-08-06 | Reinforced rib straight thread attachment joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383630 CN202689349U (en) | 2012-08-06 | 2012-08-06 | Reinforced rib straight thread attachment joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202689349U true CN202689349U (en) | 2013-01-23 |
Family
ID=47544986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220383630 Expired - Fee Related CN202689349U (en) | 2012-08-06 | 2012-08-06 | Reinforced rib straight thread attachment joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202689349U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130585A (en) * | 2019-05-21 | 2019-08-16 | 上海森信建设集团有限公司 | A kind of Large-size rebar free end docking facilities and its application method |
| CN115059241A (en) * | 2022-07-06 | 2022-09-16 | 湖南立格建业科技有限公司 | Steel bar connecting joint and thread machining device thereof |
-
2012
- 2012-08-06 CN CN 201220383630 patent/CN202689349U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130585A (en) * | 2019-05-21 | 2019-08-16 | 上海森信建设集团有限公司 | A kind of Large-size rebar free end docking facilities and its application method |
| CN115059241A (en) * | 2022-07-06 | 2022-09-16 | 湖南立格建业科技有限公司 | Steel bar connecting joint and thread machining device thereof |
| CN115059241B (en) * | 2022-07-06 | 2024-05-24 | 湖南立格建业科技有限公司 | Screw thread processingequipment of reinforcing bar attach fitting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |