CN108412189A - A kind of screw connection for steel pipe docking - Google Patents
A kind of screw connection for steel pipe docking Download PDFInfo
- Publication number
- CN108412189A CN108412189A CN201810465359.4A CN201810465359A CN108412189A CN 108412189 A CN108412189 A CN 108412189A CN 201810465359 A CN201810465359 A CN 201810465359A CN 108412189 A CN108412189 A CN 108412189A
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- CN
- China
- Prior art keywords
- screw
- steel pipe
- thread
- casing
- connection
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G7/00—Connections between parts of the scaffold
- E04G7/02—Connections between parts of the scaffold with separate coupling elements
- E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
- E04G7/20—Stiff scaffolding clamps for connecting scaffold members of common shape for ends of members only, e.g. for connecting members in end-to-end relation
Abstract
The invention discloses a kind of screw connections for steel pipe docking, are used for first steel pipe and second fastener for connection, include mainly：Standing screw, movable whorl casing, fixed thread casing and moving screw；One end of standing screw and first fastener for connection, the other end of standing screw is equipped with external screw thread, one end of fixed thread casing and second fastener for connection, the other end of fixed thread casing is equipped with internal thread, the both ends of movable whorl casing are connect with standing screw and moving screw respectively, the both ends of moving screw are respectively with movable whorl casing and fixed thread casing connection, and the thread number of junction all meets design requirement；Compared to existing welding or flanged joint technology, the present invention has given full play to the easily-controllable advantage of industrialized production quality, and facilitates installation, and small, joint quality stabilization is influenced by factors such as environment, weather, operating technologies.
Description
Technical field
The present invention relates to a kind of screw connection, more particularly to a kind of screw connection for steel pipe docking,
It is mainly used in the connection of architectural engineering steel pipe.
Background technology
Round steel pipe being widely used in construction projects is general：The many kinds structure type such as rack, reticulated shell, truss is all main
It is constituted with round steel pipe.
Large-scale steel pipe is limited by factory process ability and traffic condition, in Practical Project construction, it is difficult to directly handle
Span carries out upper air installing up to tens of meters of round steel pipe structure.Building element usually requires segmentation and is transported to scene, then
Docking spreading is carried out at the scene.Can in the building structure based on round steel pipe, whether round steel pipe docking technique be perfect, be that protect
Card building structure reaches an important factor for predetermined design requires.
Some other can also use field such as water pipe docking, Oil/Gas Pipe docking of round steel pipe docking etc., can rely on both ends
The relative movement or rotation of component are to coordinate docking operation, but the usual scale of building element and weight are all larger, as
It is differed up to 140-450mm for the round steel pipe diameter in truss, both ends construction weight is up to tens of tons up to a hundred, and in most cases
The round steel pipe that both ends component has several directions different respectively needs to dock (see attached drawing 3,4), once the both ends structure that connection will be prepared
After part is in place on mounting platform, it can not be rotated further by or move.
Current round steel pipe interconnection method most common in construction projects is welding and flanged joint, but both methods is deposited
In problems with：
1. welding：
(1) since construction is mostly in outdoor progress, the welding of large-scale steel pipe is affected by weather, severe cold, strong wind,
The bad weathers such as rain, snow can have an impact overhead welding quality；
(2) welding is affected by artificial technology：Technical merit, spirit, muscle power of welder etc. are easy to welding
Quality has an impact；
(3) welding easily causes steel brittleness, reduces joint mechanical property；
(4) in steel space structure, be welded to connect usually require that high-altitude carry out, quality detection work difficulty compared with
Height has certain danger, more demanding to testing staff；
(5) docking of the building element larger to scale and weight, a, section longer using the working hour for being welded to connect required
The connection of point generally requires to expend dozens of hour, and staff is very arduous, and it is more to expend working hour.
2. flanged joint：
(1) connecting node protrudes steel tube surface, influences appearance；In order to ensure the bearing capacity of flanged joint, need setting compared with
More high-strength bolts, such flanged joint node will significantly protrude steel tube surface, this is in the higher neck of some building requirements
Domain is very serious problem.
(2) by flanged joint steel pipe, the stress form of steel pipe is that steel pipe arrives steel pipe again to flange, and steel pipe power transmission is not straight
It connects, junction stressing conditions are complicated.
(3) flanged joint is chronically at high-stress state, meets shearing resistance, tension, bending resistance by the pretightning force of high-strength bolt
Etc. compound internal force status, it is easy that connector is made to generate moderate finite deformation.
Invention content
The technical problem to be solved by the present invention is to be directed to prior art steel pipe docking welding and flange connection to exist
Difficulty of construction it is big, the time is long, and junction stress is complicated, and the problem influenced by weather and human factor provides a kind of connection
It is convenient, the size at fastener for connection and stress are not influenced, and constructing to take significantly reduces, low to weather and manual request, is easy inspection
Look into the screw connection for steel pipe docking of quality of connection.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of screw connection for steel pipe docking is used for first steel pipe and second fastener for connection, first steel pipe and second steel pipe
It is located along the same line, includes mainly：Standing screw, movable whorl casing, fixed thread casing and moving screw；Standing screw
One end and first fastener for connection, the other end of standing screw is equipped with external screw thread, and movable whorl casing is equipped with internal thread, standing screw
External screw thread connect with the internal thread of movable whorl casing；One end of fixed thread casing and second fastener for connection, fixed thread set
The other end of pipe is equipped with internal thread, and moving screw is equipped with external screw thread, the internal thread of fixed thread casing and the outer spiral shell of moving screw
Line connects；Gap between standing screw and moving screw is equal to the integral multiple of thread pitch；
The both ends of the movable whorl casing are connect with standing screw and moving screw respectively, the both ends difference of moving screw
All meet design requirement with the thread number of movable whorl casing and fixed thread casing connection, and junction.
To further realize the object of the invention, it is preferable that the first steel pipe, movable whorl casing, fixed screw shell and
Second steel pipe is all columnar structured, and cross-sectional outer diameter is identical.
Preferably, the standing screw and moving screw are cylindric, and outer diameter is identical, and outer diameter is equal to first steel pipe or second
The internal diameter of steel pipe.
Preferably, one end of the standing screw is inserted into one end that first fastener for connection refers to standing screw in first steel pipe,
By screw thread or it is welded to connect.
Preferably, the standing screw removes the part being inserted into first steel pipe and is all machined with external screw thread.
Preferably, second is inserted into one end of the fixed thread casing with one end that second fastener for connection refers to fixed thread casing
In steel pipe, by screw thread or it is welded to connect.
Preferably, it is to be processed into one end of fixed thread casing that one end of the fixed thread casing, which is inserted into second steel pipe,
The cylinder of a diameter of second pipe diameter.
Preferably, the internal thread of the fixed thread casing is machined to the end section of second steel pipe from fixed thread cannula cavity
At face.
Preferably, the first steel pipe and second steel pipe are round steel pipe.
Preferably, the outer diameter of the round steel pipe is 140-450mm.
Compared with the existing technology, the present invention has the advantage that is with advantageous effect：
1) screw connection for steel pipe docking of the invention, compares conventional steel butt welding, main member it
Between connecting portion there is no a residual stress of weld seam, connecting portion is mechanically connected using sleeve, and joint quality easily ensures, is connected
Soon, quality is easy detection, and constructing operation greatly simplifies, and the simple easy processing of component, construction safety, operating process is simple, than tradition
The relatively reliable stabilization of butt welding mode.
2) screw connection for steel pipe docking of the invention, compares traditional sleeve connection, can pass through rotation
The position for adjusting moving screw makes the gap between standing screw and moving screw be equal to the integral multiple of thread pitch, to protect
Card activity screw shell can be rotated by standing screw to moving screw, realize the connection of the two.This is solved when round steel pipe scale
With weight is larger can not rotate and move when, the problem of sleeve connection is hindered due to the influence in gap in lifting at the scene.
3) present invention meets design, the construction needs of Practical Project for the screw connection of docking, and it is existing right to solve
Connect the quality of welding and flanged joint and the technical issues of intensity is difficult to ensure.
Description of the drawings
Fig. 1 is that the embodiment of the present invention 1 is used for structural schematic diagram of the screw connection of steel pipe docking before fastener for connection；
Fig. 2 is that the embodiment of the present invention 1 is used for structural schematic diagram of the screw connection of steel pipe docking after fastener for connection；
Fig. 3 is that the embodiment of the present invention 2 is used for knot of the screw connection of steel pipe docking before the connection of steel pipe truss component
Structure schematic diagram；
Fig. 4 is that the embodiment of the present invention 2 is used for knot of the screw connection of steel pipe docking after the connection of steel pipe truss component
Structure schematic diagram；
It is shown in figure：Standing screw 1, movable screw shell 2, fixed screw shell 3, moving screw 4, first steel pipe 5, second steel
Pipe 6, first prepackage combination 7, second prepackage combination 8, truss first preassembled section 9, truss second preassembled section 10, pricncipal rafter connection section
Point 11, truss web connecting node 12, truss lower boom connecting node 13.
Specific implementation mode
To more fully understand the present invention, the present invention is further illustrated with reference to the accompanying drawings and examples, but this hair
Bright embodiment is unlimited so.
Embodiment 1
The present embodiment is used to build large-scale first steel pipe 5 and second steel pipe 6 connects, and first steel pipe 5 and second steel pipe 6 are located at same build
It builds plane and is located along the same line.As depicted in figs. 1 and 2, a kind of screw connection for steel pipe docking includes：It is fixed
Screw rod 1, movable whorl casing 2, fixed thread casing 3 and moving screw 4；One end of standing screw 1 is connect with first steel pipe 5,
It is preferred that one end of standing screw 1 is inserted into first steel pipe 5, by screw thread or it is welded to connect；The other end of standing screw 1 is equipped with outer spiral shell
Line, movable whorl casing 2 are equipped with internal thread, and the external screw thread of standing screw 1 is connect with the internal thread of movable whorl casing 2；It is fixed
One end of threaded sleeve 3 is connect with second steel pipe 6, and preferably one end of fixed thread casing 3 is inserted into second steel pipe 6, passes through screw thread
Or it is welded to connect；The other end of fixed thread casing 3 is equipped with internal thread, and moving screw 4 is equipped with external screw thread, fixed thread casing
3 internal thread is connect with the external screw thread of moving screw 4；Gap between standing screw 1 and moving screw 4 is equal to thread pitch
The both ends of integral multiple, movable whorl casing 2 are connect with standing screw 1 and moving screw 4 respectively, the both ends difference of moving screw 4
It is connect with movable whorl casing 2 and fixed thread casing 3, and the thread number of junction all meets design requirement.
In the present embodiment, standing screw 1, movable whorl casing 2 form first prepackage with first steel pipe 5 and combine 7, fixed thread set
Pipe 3, moving screw 4 form second prepackage with second steel pipe 6 and combine 8.
Preferably, first steel pipe 5, movable whorl casing 2, fixed screw shell 3 and second steel pipe 6 are all columnar structured, are cut
Face outer diameter is identical.
Preferably, standing screw 1 and moving screw 4 are cylindric, and outer diameter is identical, and outer diameter is equal to first steel pipe 5 or second steel
The internal diameter of pipe 6.
Preferably, the internal thread of the fixed thread casing is machined to the end section of second steel pipe from fixed thread cannula cavity
At face.
It is preferred that 1 one end of standing screw is cylinder, periphery is machined with external screw thread, and the other end can be inserted into first steel pipe 5, pass through weldering
It connects and connects standing screw 1 and first steel pipe 5；3 one end of fixed thread casing is relatively large in diameter as cylindrical shape, inner hollow processing
There is internal thread, other end diameter is smaller, can be inserted into the end of second steel pipe 6, by welding fixed thread casing 3 and second steel pipe 6
Connection；Movable whorl casing 2 is the internal female cylindrical shape of processing, and movable whorl casing 2 is first passed through screw thread and fixation
Screw rod 1 connects.Moving screw 4 is that periphery is integrally provided with externally threaded solid cylinder；Moving screw 4 is passed through into screw thread and fixation
3 one end of threaded sleeve connects.After first prepackage combination 7 combines 8 in place with second prepackage, the component axis of two combinations should be conllinear.Rotation
The position of the whole moving screw of modulation 4 makes the gap between standing screw 1 and moving screw 4 be equal to the integral multiple of thread pitch.It adjusts
Movable whorl casing 2 is saved, the both ends of movable whorl casing 2 is made to be connect respectively with standing screw 1 and moving screw 4, and is lived simultaneously
The both ends of dynamic screw rod 4 are connect with movable whorl casing 2 and fixed thread casing 3 respectively, ensure that the thread number of junction all meets
Design requirement, then junction also just meet force request.So far, connection is completed.
Embodiment 2
The present embodiment is used for the connection of circular building steel pipe truss, and specifically truss first prepackage framework 9 and truss second pre-installs structure
The connection of frame 10.
Truss first pre-install framework 9 and the truss second prepackage top boom of framework 10, lower boom round steel pipe size be all Φ 450 ×
20, web member size is all Φ 180 × 8.Truss first pre-installs framework 9, truss second prepackage framework 10 first in factory's preassembling, ensures
Each corresponding rod piece can be conllinear assembled.Truss first pre-installs framework 9 and the connection of truss second prepackage framework 10 is as shown in Figure 3 and Figure 4,
The main connection for including pricncipal rafter connecting node 11, truss web connecting node 12 and truss lower boom connecting node 13；
Wherein, the connection type of pricncipal rafter connecting node 11 and truss lower boom connecting node 13 is substantially the same manner as Example 1, this
Embodiment the connection for taking into account pricncipal rafter connecting node 11 and truss lower boom connecting node 13 simultaneously, also to ensure truss
The connection of web member connecting node 12.Truss web connecting node 12 is to be at an angle to the horizontal surface.
Pricncipal rafter connecting node 11, truss web connecting node 12 and truss lower boom connecting node 13 all include solid
Determine screw rod 1, movable whorl casing 2, fixed thread casing 3 and moving screw 4.Transport truss first prepackage framework 9 and truss second
In place in high-altitude after pre-installing framework 10 to scene, the truss first that position is adjusted to both ends pre-installs framework 9 and truss second pre-installs structure
10 respective members axis collinear of frame.
The position of moving screw 4 is adjusted by rotation to adjust pricncipal rafter connecting node 11, truss web connection section
Point 12, the gap between 13 both ends component of truss lower boom connecting node, make each node standing screw 1 and moving screw 4 it
Between gap be equal to thread pitch integral multiple.Then the movable whorl of top boom, web member and lower boom connecting node is adjusted
Casing 2 makes the both ends of movable whorl casing 2 be connect respectively with standing screw 1 and moving screw 4, and the two of moving screw 4 simultaneously
End is connect with movable whorl casing 2 and fixed thread casing 3 respectively, and the thread number of junction all meets design requirement.So far,
Complete the connection to truss first preassembled section 9, truss second preassembled section 10.
Example 1 and Example 2 of the present invention quality of connection detection method is as follows：Check standing screw 1 in movable screw-casing
Thread number in pipe 2, thread number of the moving screw 4 in movable screw shell 2 and fixed screw shell 3.If mutually fastening
Thread number reaches design requirement, then the screw connection for being used for steel pipe docking also meets force request, and quality of connection has detected
Finish.
It should be noted that even if connection of the embodiment 2 for circular building steel pipe truss is complicated, need to take into account factor
It is more, but the attachment device of the application present invention, it is calculated since lifting is in place, taking only needs 2 hours；Quality testing need to only count structure
The number of threads that part mutually fastens.And welding or the flanged joint of the prior art are used, on the one hand need the ability under good weather
Operation, and enough highly skilled experienced operators are needed to configure, connection procedure needs to take 1 day；Weld inspection need to be welded specially
Detector device is stitched in high aerial detection, takes about 2 hours.
It can be seen that apparatus of the present invention can guarantee steel pipe field joint safely, conveniently, it can relatively well make up and solve and is existing
Technology is welded or flanged joint is in the problems in practical operation, all has apparent advantage in following several respects：
1) all welding jobs of the screw connection for steel pipe docking of the invention can be completed indoors in advance,
Site operation only need to be according to the thread number adjustment activity screw shell 2 of junction and the position of moving screw 4, connection construction
Quality is influenced small by weather；
2) the attended operation speed of the screw connection for steel pipe docking of the invention is fast, and the time is short, operation difficulty
It is small, it is not necessarily to special equipment, it is easy to accomplish high-altitude application；
3) the connection construction quality of the screw connection for steel pipe docking of the invention (is contained skill by artificial technology's state
Art is horizontal, spiritual muscle power, psychological condition etc.) influence is small；
4) the quality of connection detection of the screw connection for steel pipe docking of the invention need to only test the spiral shell of junction
Tooth number, detection difficulty very little, the processing matter quality testing of screw thread and material tests can carry out indoors.
5) screw connection for steel pipe docking of the invention is easily achieved steel pipe to be connected, movable whorl set
Pipe, the cross sectional shape of fixed screw shell are identical with outer diameter, have substantially no effect on the appearance of building structure.
6) since using being threadedly coupled, without welding, the screw connection for steel pipe docking of the invention treats company
The building element material connect influences small.
7) screw connection for steel pipe docking of the invention readily satisfies steel pipe to be connected, movable whorl set
Pipe, fixed screw shell axis on the same line, power transmission is direct, and principle is simple, does not influence the stress of building element.
8) the screw connection stress for steel pipe docking of the invention is direct, structural damage caused by not welding,
Global facility is also easy to use anti-corrosion measure, the durability of device good.
Claims (10)
1. a kind of screw connection for steel pipe docking is used for first steel pipe and second fastener for connection, first steel pipe and second steel pipe position
In on same straight line, which is characterized in that include mainly：Standing screw, movable whorl casing, fixed thread casing and movable screw
Bar；The other end of one end of standing screw and first fastener for connection, standing screw is equipped with external screw thread, and movable whorl casing is equipped with interior spiral shell
The external screw thread of line, standing screw is connect with the internal thread of movable whorl casing；One end of fixed thread casing and second fastener for connection,
The other end of fixed thread casing is equipped with internal thread, and moving screw is equipped with external screw thread, internal thread and the activity of fixed thread casing
The external screw thread of screw rod connects；Gap between standing screw and moving screw is equal to the integral multiple of thread pitch；
The both ends of the movable whorl casing are connect with standing screw and moving screw respectively, the both ends of moving screw respectively with work
Dynamic threaded sleeve and fixed thread casing connection, and the thread number of junction all meets design requirement.
2. the screw connection according to claim 1 for steel pipe docking, it is characterised in that：The first steel pipe, work
Dynamic threaded sleeve, fixed screw shell and second steel pipe are all columnar structured, and cross-sectional outer diameter is identical.
3. the screw connection according to claim 1 for steel pipe docking, it is characterised in that：The standing screw and
Moving screw is cylindric, and outer diameter is identical, and outer diameter is equal to the internal diameter of first steel pipe or second steel pipe.
4. the screw connection according to claim 1 for steel pipe docking, it is characterised in that：The standing screw
One end is inserted into one end that first fastener for connection refers to standing screw in first steel pipe, by screw thread or is welded to connect.
5. the screw connection according to claim 4 for steel pipe docking, it is characterised in that：The standing screw removes
The part being inserted into first steel pipe is all machined with external screw thread.
6. the screw connection according to claim 1 for steel pipe docking, it is characterised in that：The fixed thread set
One end of pipe is inserted into one end that second fastener for connection refers to fixed thread casing in second steel pipe, by screw thread or is welded to connect.
7. the screw connection according to claim 1 for steel pipe docking, it is characterised in that：The fixed thread set
It is the cylinder that one end of fixed thread casing is processed into a diameter of second pipe diameter that one end of pipe, which is inserted into second steel pipe,.
8. the screw connection according to claim 1 for steel pipe docking, it is characterised in that：The fixed thread set
The internal thread of pipe is machined to from fixed thread cannula cavity from the end section of second steel pipe.
9. the screw connection according to claim 1 for steel pipe docking, it is characterised in that：The first steel pipe and second
Steel pipe is round steel pipe.
10. the screw connection according to claim 9 for steel pipe docking, it is characterised in that：The round steel pipe
Outer diameter is 140-450mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465359.4A CN108412189A (en) | 2018-05-16 | 2018-05-16 | A kind of screw connection for steel pipe docking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465359.4A CN108412189A (en) | 2018-05-16 | 2018-05-16 | A kind of screw connection for steel pipe docking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412189A true CN108412189A (en) | 2018-08-17 |
Family
ID=63139683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810465359.4A Pending CN108412189A (en) | 2018-05-16 | 2018-05-16 | A kind of screw connection for steel pipe docking |
Country Status (1)
| Country | Link |
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| CN (1) | CN108412189A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265936A (en) * | 2021-04-21 | 2021-08-17 | 无锡市市政设施建设工程有限公司 | Connecting device for protective steel pipes of suspender of tied arch bridge and using method of connecting device |
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| CN2182211Y (en) * | 1994-03-18 | 1994-11-09 | 吴南山 | Extrusion type connector for reinforcing bar |
| 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 |
| TWM515013U (en) * | 2015-08-26 | 2016-01-01 | Subalu Associates Co Ltd | Fine tuning reinforcement bar coupler of reinforcement bar cage |
| JP2016176229A (en) * | 2015-03-19 | 2016-10-06 | 株式会社ディビーエス | Reinforcement joint, and steel bar and sleeve |
| CN206903194U (en) * | 2017-07-11 | 2018-01-19 | 青岛恒生源集团建设有限公司 | A kind of quick-detachable connector of steel tube |
| CN208220180U (en) * | 2018-05-16 | 2018-12-11 | 华南理工大学建筑设计研究院 | The screw connection of steel pipe docking for building |
-
2018
- 2018-05-16 CN CN201810465359.4A patent/CN108412189A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2182211Y (en) * | 1994-03-18 | 1994-11-09 | 吴南山 | Extrusion type connector for reinforcing bar |
| JP2016176229A (en) * | 2015-03-19 | 2016-10-06 | 株式会社ディビーエス | Reinforcement joint, and steel bar and sleeve |
| 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 |
| TWM515013U (en) * | 2015-08-26 | 2016-01-01 | Subalu Associates Co Ltd | Fine tuning reinforcement bar coupler of reinforcement bar cage |
| CN206903194U (en) * | 2017-07-11 | 2018-01-19 | 青岛恒生源集团建设有限公司 | A kind of quick-detachable connector of steel tube |
| CN208220180U (en) * | 2018-05-16 | 2018-12-11 | 华南理工大学建筑设计研究院 | The screw connection of steel pipe docking for building |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265936A (en) * | 2021-04-21 | 2021-08-17 | 无锡市市政设施建设工程有限公司 | Connecting device for protective steel pipes of suspender of tied arch bridge and using method of connecting device |
| CN113265936B (en) * | 2021-04-21 | 2022-11-15 | 无锡市市政设施建设工程有限公司 | Connecting device for protective steel pipes of suspender of tied arch bridge and using method of connecting device |
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