CN103256281B - Steel tube axial positioner - Google Patents
Steel tube axial positioner Download PDFInfo
- Publication number
- CN103256281B CN103256281B CN201310175315.5A CN201310175315A CN103256281B CN 103256281 B CN103256281 B CN 103256281B CN 201310175315 A CN201310175315 A CN 201310175315A CN 103256281 B CN103256281 B CN 103256281B
- Authority
- CN
- China
- Prior art keywords
- friction plate
- steel pipe
- steel tube
- arc surface
- cylindrical shape
- 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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Abstract
The invention discloses a steel tube axial positioner. The steel tube axial positioner comprises a cylindrical assembly, wherein the cylindrical assembly can penetrate through a steel tube, an arc surface which is contacted with the steel tube in radial direction is arranged on the left half side of the inner diameter of the cylindrical assembly, an arc-shaped cavity is formed in the right half side of the inner diameter of the cylindrical assembly, a friction plate is movably installed inside the arc-shaped cavity, the inner surface of the friction plate is also an arc surface, and the back surface of the friction plate is contacted with the front end of a compaction component which is arranged outside the cylindrical assembly and relative to the arc-shaped cavity. When application force is carried out on the compaction component, the compaction component is pressed to the outer surface of the friction plate, then the arc surface of the friction plate is made to be tightly contacted with the steel tube to produce friction force, and the cylindrical assembly is locked on the steel tube in the axial direction. When the compaction component is loosened, the friction force between the arc surface of the friction plate and the steel tube is made to disappear, and then the cylindrical assembly slides along the steel tube in the longitudinal direction.
Description
Technical field
The present invention relates to locking device, particularly a kind of locking device being interconnected position for adjusting different-diameter steel pipe.
Background technique
In construction industry, often need various steel pipe to be carried out be interconnected to build different support systems, the Placement of interior pipe is installed with in outer tube as shown in Figure 1, general employing welding can only be carried out one and determine being interconnected of position, outer tube position on inner pipe cannot be fixed arbitrarily, thus make troubles to construction.
Summary of the invention
The object of this invention is to provide a kind of positioning device that outer steel pipe can be firmly locked in arbitrary position on interior steel pipe.
For reaching above object, the present invention takes following technological scheme to be achieved:
A kind of steel shaft is to positioning work piece, comprise the cylindrical shape assembly that can penetrate steel pipe, its internal diameter left side is half side is provided with the arc surface contacted with steel pipe radial direction, its internal diameter is right is half sidely provided with an arch shaped cavity, wherein movable a friction plate is installed, it is also an arc surface inside this friction plate, the back side is touched by the compressing member front end of the cylinder assembly arranged outside of opposing arcuate cavity, when this compressing member force being pressed to the outside of friction plate, and then make tight quiet contact of friction plate arc surface and steel pipe produce frictional force, make cylindrical shape assembly be axially locked on steel pipe; When this compressing member loosening, friction plate arc surface and tube fraction power are disappeared, and cylindrical shape assembly is along steel pipe longitudinal sliding motion.
In such scheme, front and back two offside of described cylindrical shape assembly internal diameter is provided with limit and becomes raised line.
The outside of described friction plate is provided with wedge shape projection, and this wedge shape is raised with an inclined-plane tilted laterally from top to bottom.The cross section of described wedge shape projection is swallowtail shape, and is placed in the dovetail groove at arch shaped cavity rear portion.Described compressing member is bolt.
Advantage of the present invention is,
1, outer steel pipe arbitrarily can be fixed on when cylindrical shape assembly end and outer fastener for connection interior steel shaft to any position.
2, under fastener end stops, friction plate can not deviate from arch shaped cavity, has auto-lock function.
3, when cylindrical shape assembly is greater than the frictional force between fastener end and friction plate by longitudinal force, produce again with kinetic force of friction between steel pipe and friction plate, make the connection of positioning work piece and steel pipe more firm.
4, steel pipe elliptical deformation can be stoped when arranging bilateral limit in cylindrical shape assembly and becoming raised line, keep the frictional force between steel pipe and friction plate not reduce.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.
Fig. 1 is axial sectional view of the present invention.
Fig. 2 is radial cross-section of the present invention.
In Fig. 1, Fig. 2: 1, cylindrical shape assembly; 2, outer steel pipe; 2 ', interior steel pipe; 3, friction plate; 4, bolt; 5, inclined-plane; 6, wedge shape is protruding; 7, dovetail groove; 8, arch shaped cavity; A, arc surface; B, limit become raised line.
Embodiment
With reference to figure 1, Fig. 2, a kind of steel shaft, to positioning work piece, comprises the cylindrical shape assembly 1 that can penetrate interior steel pipe 2 ', and the left half side limit being provided with arc surface A and front and back two offside contacted with interior steel pipe radial direction of its internal diameter becomes raised line B; Its internal diameter is right is half sidely provided with an arch shaped cavity 8, is wherein movablely provided with a friction plate 3, is the arc surface that contact radial with interior steel pipe 2 inside this friction plate; The back side is provided with wedge shape projection 6, wedge shape convex cross section is swallowtail shape, and the dovetail groove 7 being placed in arch shaped cavity rear portion can not radial direction be deviate from, compressing member (bolt 4) is provided with outside the cylinder assembly of opposing arcuate cavity, axially locating device is made to be locked on interior steel pipe, when cylindrical shape assembly end is connected with outer steel pipe 2 (welding), and then outer steel pipe arbitrarily can be fixed on the axial any position of interior steel pipe 2 '.
Tight a bolt 4, the wedge shape that bolt end presses to friction plate is protruding, makes that friction plate arc surface and interior steel pipe are tight quietly to be contacted, and produce frictional force between friction plate and interior steel pipe, positioning work piece assembly is positioned on interior steel pipe.Unclamp bolt, the frictional force between friction plate and interior steel pipe disappears, and positioning work piece can along interior steel pipe longitudinal sliding motion.Because wedge shape is raised with an inclined-plane tilted laterally from top to bottom, under bolt end stops, friction plate can not deviate from arch shaped cavity, has auto-lock function.
Bolt presses is in the wedge shape projection of friction plate, when cylindrical shape assembly is by longitudinal force, and be greater than bolt end and friction plate wedge shape convex between frictional force time, cylindrical shape assembly with produce relative microdisplacement between friction plate positive pressure between friction plate and interior steel pipe strengthened thereupon, frictional force strengthens further between the two, produces with kinetic force of friction between interior steel pipe and friction plate again.
When longitudinal force strengthens further, steel pipe elliptical deformation when the positive pressure that the internal steel tube place of frictional force produces is greater than steel pipe rigidity.In cylindrical shape assembly, bilateral limit becomes raised line B prevention steel pipe elliptical deformation, keeps the frictional force between steel pipe and friction plate not reduce.
Claims (4)
1. a steel shaft is to positioning work piece, it is characterized in that, comprise the cylindrical shape assembly that can penetrate steel pipe, its internal diameter left side is half side is provided with the arc surface contacted with steel pipe radial direction, its internal diameter is right is half sidely provided with an arch shaped cavity, wherein movable a friction plate is installed, it is also an arc surface inside this friction plate, the back side is touched by the compressing member front end of the cylinder assembly arranged outside of opposing arcuate cavity, when this compressing member force being pressed to the back side of friction plate, and then make friction plate arc surface and steel pipe close contact produce frictional force, cylindrical shape assembly is made to be axially locked on steel pipe, when this compressing member loosening, friction plate arc surface and tube fraction power are disappeared, and cylindrical shape assembly is along steel pipe longitudinal sliding motion, front and back two offside of described cylindrical shape assembly internal diameter is provided with limit and becomes raised line.
2. steel shaft as claimed in claim 1 is to positioning work piece, and it is characterized in that, the back side of described friction plate is provided with wedge shape projection, and this wedge shape is raised with an inclined-plane tilted laterally from top to bottom.
3. steel shaft as claimed in claim 2 is to positioning work piece, and it is characterized in that, the cross section of described wedge shape projection is swallowtail shape, and is placed in the dovetail groove at arch shaped cavity rear portion.
4. the arbitrary steel shaft as described in claims 1 to 3, to positioning work piece, is characterized in that, described compressing member is bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310175315.5A CN103256281B (en) | 2013-05-13 | 2013-05-13 | Steel tube axial positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310175315.5A CN103256281B (en) | 2013-05-13 | 2013-05-13 | Steel tube axial positioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103256281A CN103256281A (en) | 2013-08-21 |
| CN103256281B true CN103256281B (en) | 2015-02-25 |
Family
ID=48960423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310175315.5A Expired - Fee Related CN103256281B (en) | 2013-05-13 | 2013-05-13 | Steel tube axial positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103256281B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050851B (en) * | 2016-07-18 | 2018-08-14 | 长春工程学院 | It is a kind of to bear the vertical piecing devices of steel pipe tool-type based on axial pressure |
| CN106089880A (en) * | 2016-08-17 | 2016-11-09 | 中山大山摄影器材有限公司 | Camera frame expansion link |
| CN112762805A (en) * | 2020-12-17 | 2021-05-07 | 武昌船舶重工集团有限公司 | Shafting school table frame |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2194800A (en) * | 1937-10-04 | 1940-03-26 | Ley George Albert | Adjustable clamp |
| CN2327827Y (en) * | 1998-02-24 | 1999-07-07 | 杨进来 | Improved joints of rack body |
| US5927670A (en) * | 1998-05-18 | 1999-07-27 | Hsieh; Wu-Hong | Instrument support |
| CN201027735Y (en) * | 2007-02-13 | 2008-02-27 | 上海东今实业有限公司 | Telescope tube connector |
| US20120001416A1 (en) * | 2010-07-05 | 2012-01-05 | I-Sin Peng | Retractable Rod Structure |
| CN202833484U (en) * | 2012-10-16 | 2013-03-27 | 旭凯国际股份有限公司 | Adjusting and positioning structure of a sleeve jointing pipe fitting |
-
2013
- 2013-05-13 CN CN201310175315.5A patent/CN103256281B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103256281A (en) | 2013-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161019 Address after: Yanta District 710043 in Shaanxi province Xi'an City Construction Road No. 34 building 3 unit five Nga District 2 Room 202 Patentee after: Xi'an Watson Construction Technology Co., Ltd. Address before: 710043 Xi'an City, the new city of happiness Road, No., No. 37 Patentee before: Xi'an Boqi Industry Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20180513 |