CN107900239B - A kind of squirrel-cage steel pipe jointing device - Google Patents
A kind of squirrel-cage steel pipe jointing device Download PDFInfo
- Publication number
- CN107900239B CN107900239B CN201711122116.2A CN201711122116A CN107900239B CN 107900239 B CN107900239 B CN 107900239B CN 201711122116 A CN201711122116 A CN 201711122116A CN 107900239 B CN107900239 B CN 107900239B
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- fixed frame
- adjustable shelf
- attachment base
- connecting sleeve
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 95
- 239000010959 steel Substances 0.000 title claims abstract description 95
- 230000008602 contraction Effects 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention relates to a kind of squirrel-cage steel pipe jointing device, including the first attachment base and the second attachment base, the first attachment base includes at least connecting sleeve, the first contact bracket and the first fixed frame, the first fixed frame and is fixed in connecting sleeve；Second attachment base includes at least the second fixed frame, the second contact bracket and the second adjustable shelf, the both ends of second contact bracket are connected on the second fixed frame and the second adjustable shelf, the relative rotation of the second attachment base and the first attachment base is realized by the rotational speed difference of front and back steel pipe, move the second adjustable shelf along connecting sleeve axial direction relative to the second fixed frame, so that second contacts bracket to adjacent circumferential expansion or contraction.The present invention is applied widely, and different size steel pipe may be implemented and be attached；It realizes that front and back steel pipe is connected and separated automatically, improves production efficiency, reduces labor intensity and time, reduction production cost.
Description
Technical field
The present invention relates to steel pipe interconnection technique field, in particular to a kind of squirrel-cage steel pipe jointing device.
Background technique
Steel pipe carries out making steel pipe on one side by the rubber wheel of oblique arrangement on the conveyor line in the outer preservation process of 3PE/FBE
Rotation is advanced on one side, and wherein rubber wheel not only plays the role of transmission, but also plays the role of supporting steel pipe.The anti-corrosion outside 3PE/FBE
Implementation phase includes heating in medium frequency, FBE spraying, PE winding, due to the requirement of construction material performance and technique, in this segment limit
There cannot be contact supporting point, this segment limit length is about 3.5 meters.When length of steel pipe is greater than 8 meters, this model can be passed through
It encloses, on production substantially without influence.When length of steel pipe is less than 8 meters, rotation and from redistribution due to, when pass through this range
When will generate apparent radial run-out, make operating point location that fierce variation occur, be unable to complete so as to cause construction.
In order to enable steel pipe of the length less than 8 meters smoothly by the construction stage, it need to use and temporarily splice between steel pipe
Two or more steel pipes are fixedly connected with its head and the tail by mode at work, one root long degree of composition is greater than 8 meters of steel pipe, make
Connection is released again after the completion of industry, restores original length.Traditional connection type has electric welding fixation, Bolted Flanged Connection, anchor ear solid
The modes such as fixed, but need to carry out outside workflow after these modes, one whole steel pipe, which is re-used as, after the completion of connection enters work
Process arrives workflow again and releases connection after fulfiling assignment.The workload for the process that greatly increases is influenced work effect by aforesaid way
Rate increases cost, while being also possible to cause secondary damage to steel pipe.
Summary of the invention
The present invention provides a kind of squirrel-cage steel pipe jointing device in order to solve the above problem.
Above-mentioned purpose of the invention has the technical scheme that a kind of squirrel-cage steel pipe jointing device,
The second connection including the first attachment base for being mounted in previous steel pipe rear end and for being mounted in latter steel pipe front end
Seat, first attachment base include at least connecting sleeve, the first contact bracket for being connected to previous steel pipe inner wall and use
In the first fixed frame for being connected to previous steel pipe rear end end, first fixed frame is fixed in the connecting sleeve；It is described
Second attachment base, which includes at least, to be rotatably installed in the connecting sleeve and for being connected to the second of latter steel pipe forward end
Fixed frame, the second contact bracket for being connected to latter steel pipe inner wall and the second activity being bolted in the connecting sleeve
The both ends of frame, the second contact bracket are connected on second fixed frame and second adjustable shelf, pass through front and back
The rotational speed difference of steel pipe realizes the relative rotation of second attachment base Yu first attachment base, keeps second adjustable shelf opposite
Second fixed frame is moved along the connecting sleeve axial direction, so that described second contacts bracket to adjacent circumferential expansion or receipts
Contracting.
Preferably, one end of the second contact bracket is fixed on second fixed frame, the other end is articulated with
On second adjustable shelf.
Preferably, described second contacts bracket at a distance from the tie point to center of rotation of second fixed frame, greatly
In the second contact bracket at a distance from the tie point to center of rotation on second adjustable shelf.
Preferably, the second contact bracket is the radius of gyration by second fixed frame to the second adjustable shelf side
To the arc structure being gradually reduced.
Preferably, the tie point of the second contact bracket and second fixed frame, is arrived outside second fixed frame
The radial distance at edge is greater than or equal to the wall thickness of steel pipe.
Preferably, second fixed frame is connected with rotary axle box, the rotary axle box is rotationally sleeved on the company
On female connector pipe, and in the both ends of rotary axle box setting position limiting structure to limit the rotary axle box and second fixed frame
Movement in the axial direction.
Preferably, first attachment base further includes the first adjustable shelf and adjusting screw rod, the first contact bracket connects
Be connected between first fixed frame and first adjustable shelf, the adjusting screw rod axially through be threaded through the connection
Be spirally connected in casing and with the connecting sleeve, the adjusting screw rod at least one end stretch out on the outside of the connecting sleeve and with it is described
The connection of first adjustable shelf, is adjusted between first adjustable shelf and first fixed frame by rotating the adjusting screw rod
Away from so that described first contacts bracket to adjacent circumferential expansion or contraction.
Preferably, first adjustable shelf is socketed on the adjusting screw rod by sets of holes, the end of the adjusting screw rod
Portion is equipped with the limited block being located on the outside of first adjustable shelf, when the adjusting screw rod is rotated relative to the connecting sleeve, institute
Stating limited block pulls first adjustable shelf to move along axial direction to close to first fixed frame direction.
Preferably, being equipped with bolster between the limited block and first adjustable shelf, the bolster is set in institute
It states on adjusting screw rod.
Beneficial effects of the present invention: 1, it is applied widely, by replacing the attachment base of various outer diameter size, may be implemented not
Same specification steel pipe is attached；
2, high degree of automation realizes automatic connection and separation by the rotational speed difference of front and back steel pipe, improve production efficiency,
It reduces labor intensity and time, reduce production cost；
3, the reliable interim connection between steel pipe is realized automatically, is formed it into " steel pipe of a lengthening ", while automatic realization
It is detached from, reverts to original state；
4, by the setting of the intensity and pretightning force of the bolster on adjusting screw rod, the first contact bracket and steel pipe be can adjust
The contact pressure of inner wall prevents contact pressure is excessive from causing steel pipe inner wall friction damage and contact pressure too small and cause connection strong
Degree is insufficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the first attachment base in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the second attachment base in the embodiment of the present invention；
Fig. 4 is use state diagram in the embodiment of the present invention；
In figure: the first attachment base of 1-, the first fixed frame of 11-, 12- first contact bracket, the first adjustable shelf of 13-, 14- connection
Casing, 15- adjusting screw rod, 151- limited block, 16- bolster, the second attachment base of 2-, the second fixed frame of 21-, 22- second are contacted
Bracket, the second adjustable shelf of 23-, 24- rotary axle box, the previous steel pipe of 3-, the latter steel pipe of 4-.
Specific embodiment
In conjunction with attached drawing, the present invention is described in further detail.This specific embodiment is only explanation of the invention,
It is not limitation of the present invention, and those skilled in the art can according to need after reading this specification to this implementation
Example makes the modification of not creative contribution, but as long as all by the protection of Patent Law in scope of the presently claimed invention.
Embodiment: as shown in Figures 1 to 4, a kind of squirrel-cage steel pipe jointing device, including for being mounted on previous steel pipe 3
The first attachment base 1 in rear end and the second attachment base 2 for being mounted in latter 4 front end of steel pipe, wherein the second attachment base 2 can
It is rotated relative to the first attachment base 1.
As depicted in figs. 1 and 2, the first attachment base 1 includes connecting sleeve 14, first for being connected to previous steel pipe inner wall
Contact bracket 12 and the first fixed frame 11 for being connected to previous steel pipe rear end end, first fixed frame 11 are fixed in
In the connecting sleeve 14.It further include the first adjustable shelf 13 and adjusting screw rod 15, the first contact bracket 12 is connected to described
Between first fixed frame 11 and first adjustable shelf 13, one end is welded on the first fixed frame 11, and the other end is hinged on
On one adjustable shelf 13.First contact bracket 12 is that the radius of gyration is gradually reduced by first the 11 to the first adjustable shelf of fixed frame, 13 direction
Arc structure.The adjusting screw rod 15 axially through be threaded through in the connecting sleeve 14 and with the connecting sleeve 14
It being spirally connected, the adjusting screw rod 15 at least one end is stretched out 14 outside of connecting sleeve and is connect with first adjustable shelf 13,
The spacing that first adjustable shelf 13 and first fixed frame 11 are adjusted by rotating the adjusting screw rod 15, so that described
First contacts bracket 12 to adjacent circumferential expansion or contraction.
First adjustable shelf 13 is socketed on the adjusting screw rod 15 by sets of holes, and the end of adjusting screw rod 15, which is equipped with, is located at institute
The limited block 151 in 13 outside of the first adjustable shelf is stated, wherein limited block 151 can be to be welded on 15 end of adjusting screw rod or be screwed onto
15 end of adjusting screw rod.When the adjusting screw rod 15 is rotated relative to the connecting sleeve 14, adjusting screw rod 15 is with respect to connector sleeve
Pipe 14 moves axially, while limited block 151 pulls first adjustable shelf 13 along axial direction to close to 11 side of the first fixed frame
To movement, first between the first adjustable shelf 13 and the first fixed frame 11 is set to contact bracket 12 to adjacent circumferential expansion, thus will
First attachment base 1 is fixed on steel pipe.Bolster 16, the buffering are equipped between limited block 151 and first adjustable shelf 13
Part 16 is set on the adjusting screw rod 15, and wherein bolster is spring.
As shown in figures 1 and 3, the second attachment base 2 includes being rotatably installed in the connecting sleeve 14 and for being connected to
Second fixed frame 21 of latter steel pipe forward end, second for being connected to latter steel pipe inner wall contact bracket 22 and are spirally connected
In the second adjustable shelf 23 in the connecting sleeve 14, it is solid that the both ends of the second contact bracket 22 are connected to described second
Determine on frame 21 and second adjustable shelf 23, second attachment base 2 and described first is realized by the rotational speed difference of front and back steel pipe
The relative rotation of attachment base 1 keeps relatively described second fixed frame 21 of second adjustable shelf 23 axial along the connecting sleeve 14
Direction is mobile, so that described second contacts bracket 22 to adjacent circumferential expansion or contraction.
One end of second contact bracket 22 is fixed on second fixed frame 21, and it is living that the other end is articulated with described second
In moving frame 23.Second contact bracket 22 is with the tie point to center of rotation of second fixed frame 21 at a distance from, greater than described the
Two contact brackets 22 are at a distance from the tie point to center of rotation on second adjustable shelf 23.Second contact bracket 22 is rotation
The arc structure that radius is gradually reduced by second fixed frame 21 to 23 direction of the second adjustable shelf.Second contact bracket 22
With the tie point of second fixed frame 21, it is greater than or equal to steel pipe to the outer peripheral radial distance of second fixed frame 21
Wall thickness.Second fixed frame 21 is connected with rotary axle box 24, and the rotary axle box 24 is rotationally sleeved in the connecting sleeve 14,
And in the both ends of the rotary axle box 24 setting position limiting structure to limit the rotary axle box 24 and the second fixed frame 21 in axial direction
The movement in direction.
The application method for connecting previous steel pipe 3 and latter steel pipe 4 by squirrel-cage steel pipe jointing device is as follows:
Step 1: on bridging table, outer diameter attachment device similar with outer diameter of steel pipes is selected, and by the first attachment base 1
Fill in the tail portion of previous steel pipe 3.
Step 2: rotation adjusting screw rod 15 keeps sliding first adjustable shelf 13 mobile to the first fixed frame 11 on bridging table,
It causes the shortening of 12 axial distance of the first contact bracket to expand outwardly, and is contacted with previous 3 inner wall of steel pipe and generate certain connect simultaneously
Touch pressure.
Step 3: the previous steel pipe 3 for completing connection in the first attachment base 1 is put into pipeline, will be threadingly advanced；
After reaching certain position, latter steel pipe 4 is put into pipeline, is also threadingly advanced.In this stage, the rotation of latter steel pipe 4
It is greater than the rotation and forward speed of previous steel pipe 3 with forward speed, two steel pipes generate the effect of pursuit and relative rotation.
Step 4: the second fixed frame 21 of the pursuit of the latter steel pipe 4 to contact position and the second attachment base 2 occurs friction and connects
Touching, 4 rotation speed of the latter steel pipe is still faster than previous steel pipe 3 at this time, drives the second attachment base 2 that phase occurs with the first attachment base 1
To rotation.By mutual turning effort, the second adjustable shelf 23 is mobile to the second fixed frame 21, causes 22 axis of the second contact bracket
It is expanded outwardly to Distance Shortened, and is contacted with latter 4 inner wall of steel pipe and generate certain contact pressure simultaneously.
Step 5: the latter pursuit of steel pipe 4 is until 3 tail portion of the second fixed frame 21 and previous steel pipe of itself and the second attachment base 2
The fitting completely of the first fixed frame 11, previous steel pipe 3 and latter steel pipe 4 complete interim connection by the attachment device at this time,
Form " steel pipe of a lengthening ".Connection while more steel pipes can be formed in this manner, makes length of steel pipe reach requirement, from
And anti-corrosion implementation phase outside 3PE/FBE can be passed through.
Step 6: after through anti-corrosion implementation phase, completion corrosion prevention operation outside 3PE/FBE, in cooling stage, previous steel pipe
3 rotation speed will be greater than latter steel pipe 4, drive the first attachment base 1 to reversely rotate with the second attachment base 2, by reversed
Turning effort, the second adjustable shelf 23 causes 22 axial distance of the second contact bracket to mobile far from 21 direction of the second fixed frame
Elongation reduces to contract, and with latter 4 inner wall contact pressure of steel pipe.
Step 7:, as lasting reverse rotation occurs for the first attachment base 1 and the second attachment base 2, second is living in cooling section
To far from the movement of 21 direction of the second fixed frame, the second contact bracket 22 loses with latter 4 inner wall of steel pipe to be contacted moving frame 23, is completed
The disengaging of previous steel pipe 3 and latter steel pipe 4, attachment device are taken away by previous steel pipe 3.
Step 8: reversely rotating adjusting screw rod 15 makes the first adjustable shelf 13 to far from the first fixed frame on bridging table
11 directions are mobile, cause the elongation of 12 axial distance of the first contact bracket, to contract, and with previous 3 inner wall contact pressure of steel pipe
Reduce.
Step 9: persistently reversely rotating adjusting screw rod 15 consolidates the first adjustable shelf 13 to far from first on bridging table
It is mobile to determine 11 direction of frame, causes the elongation of 12 axial distance of the first contact bracket, to contract, until the first contact bracket 12 not with
Previous steel pipe inner wall contact, takes out attachment device, to carry out next use.
Claims (9)
1. a kind of squirrel-cage steel pipe jointing device, it is characterised in that: connect including first for being mounted in previous steel pipe rear end
Joint chair (1) and the second attachment base (2) for being mounted in latter steel pipe front end, first attachment base (1), which includes at least, to be connected
Female connector pipe (14), first for being connected to previous steel pipe inner wall contact bracket (12) and for being connected to previous steel pipe rear end
The first fixed frame (11) of end, first fixed frame (11) are fixed on the connecting sleeve (14)；Second connection
Seat (2), which includes at least, to be rotatably installed on the connecting sleeve (14) and second for being connected to latter steel pipe forward end is solid
Determine frame (21), the second contact bracket (22) for being connected to latter steel pipe inner wall and is bolted in the connecting sleeve (14)
The second adjustable shelf (23), it is described second contact bracket (22) both ends be connected to second fixed frame (21) with it is described
On second adjustable shelf (23), second attachment base (2) and first attachment base (1) are realized by the rotational speed difference of front and back steel pipe
Relative rotation, make relatively described second fixed frame (21) of second adjustable shelf (23) along the connecting sleeve (14) axial direction side
To movement, so that described second contacts bracket (22) to adjacent circumferential expansion or contraction.
2. a kind of squirrel-cage steel pipe jointing device according to claim 1, it is characterised in that: the second contact bracket
(22) one end is fixed on second fixed frame (21), and the other end is articulated on second adjustable shelf (23).
3. a kind of squirrel-cage steel pipe jointing device according to claim 1, it is characterised in that: the second contact bracket
(22) at a distance from the tie point to center of rotation of second fixed frame (21), it is greater than second contact bracket (22) and institute
State the tie point on the second adjustable shelf (23) to center of rotation distance.
4. a kind of squirrel-cage steel pipe jointing device according to claim 3, it is characterised in that: the second contact bracket
(22) arc structure being gradually reduced by second fixed frame (21) to the second adjustable shelf (23) direction for the radius of gyration.
5. a kind of squirrel-cage steel pipe jointing device according to claim 3, it is characterised in that: the second contact bracket
(22) with the tie point of second fixed frame (21), it is greater than or waits to the outer peripheral radial distance of second fixed frame (21)
In the wall thickness of steel pipe.
6. a kind of squirrel-cage steel pipe jointing device according to claim 1, it is characterised in that: second fixed frame (21)
It is connected with rotary axle box (24), the rotary axle box (24) is rotationally sleeved on the connecting sleeve (14), and at described turn
The both ends setting position limiting structure of moving axis set (24) is to limit the rotary axle box (24) and the second fixed frame (21) in the axial direction
Movement.
7. a kind of squirrel-cage steel pipe jointing device according to claim 1, it is characterised in that: first attachment base (1)
It further include the first adjustable shelf (13) and adjusting screw rod (15), first contact bracket (12) is connected to first fixed frame
(11) between first adjustable shelf (13), the adjusting screw rod (15) axially through be threaded through the connecting sleeve
(14) it is spirally connected in and with the connecting sleeve (14), the connecting sleeve (14) is stretched out in the adjusting screw rod (15) at least one end
Outside is simultaneously connect with first adjustable shelf (13), adjusts first adjustable shelf by rotating the adjusting screw rod (15)
(13) with the spacing of first fixed frame (11) so that first contact bracket (12) is to adjacent circumferential expansion or contraction.
8. a kind of squirrel-cage steel pipe jointing device according to claim 7, it is characterised in that: first adjustable shelf (13)
It is socketed on the adjusting screw rod (15) by sets of holes, the end of the adjusting screw rod (15), which is equipped with, is located at first adjustable shelf
(13) limited block (151) on the outside of, when the adjusting screw rod (15) is rotated relative to the connecting sleeve (14), the limited block
(151) pull first adjustable shelf (13) along axial direction to close to the first fixed frame (11) direction movement.
9. a kind of squirrel-cage steel pipe jointing device according to claim 8, it is characterised in that: the limited block (151) with
Bolster (16) are equipped between first adjustable shelf (13), the bolster (16) is set on the adjusting screw rod (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711122116.2A CN107900239B (en) | 2017-11-14 | 2017-11-14 | A kind of squirrel-cage steel pipe jointing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711122116.2A CN107900239B (en) | 2017-11-14 | 2017-11-14 | A kind of squirrel-cage steel pipe jointing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107900239A CN107900239A (en) | 2018-04-13 |
| CN107900239B true CN107900239B (en) | 2019-04-12 |
Family
ID=61844007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711122116.2A Active CN107900239B (en) | 2017-11-14 | 2017-11-14 | A kind of squirrel-cage steel pipe jointing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107900239B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111745056B (en) * | 2020-05-18 | 2025-01-03 | 湖北金阳石新型耐磨材料科技有限公司 | A squirrel cage hammer riveting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB787712A (en) * | 1954-12-31 | 1957-12-11 | Henry Thomas Chamberlain | Improvements in or relating to pipe couplings |
| US6811347B1 (en) * | 2003-10-28 | 2004-11-02 | Pi-Hua Hsieh | Lamp post insertional conjoinment structure |
| CN203628086U (en) * | 2013-10-25 | 2014-06-04 | 宝钢发展有限公司 | Steel pipe connector for producing pipeline outer coatings |
| CN105673965A (en) * | 2016-03-29 | 2016-06-15 | 北京隆盛泰科石油管科技有限公司 | Steel pipe connector and method for connecting steel pipes through steel pipe connector |
| CN106345662A (en) * | 2016-11-22 | 2017-01-25 | 中油管道防腐工程有限责任公司 | Automatic production line and production method for anti-corrosion steel tubes |
-
2017
- 2017-11-14 CN CN201711122116.2A patent/CN107900239B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB787712A (en) * | 1954-12-31 | 1957-12-11 | Henry Thomas Chamberlain | Improvements in or relating to pipe couplings |
| US6811347B1 (en) * | 2003-10-28 | 2004-11-02 | Pi-Hua Hsieh | Lamp post insertional conjoinment structure |
| CN203628086U (en) * | 2013-10-25 | 2014-06-04 | 宝钢发展有限公司 | Steel pipe connector for producing pipeline outer coatings |
| CN105673965A (en) * | 2016-03-29 | 2016-06-15 | 北京隆盛泰科石油管科技有限公司 | Steel pipe connector and method for connecting steel pipes through steel pipe connector |
| CN106345662A (en) * | 2016-11-22 | 2017-01-25 | 中油管道防腐工程有限责任公司 | Automatic production line and production method for anti-corrosion steel tubes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107900239A (en) | 2018-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105276333B (en) | A kind of pipeline internal robot walking | |
| CN117283231B (en) | A welding device and welding method for connecting plastic-coated composite steel pipes with stainless steel lining | |
| CN108214135A (en) | Inner wall of the pipe automatic Polishing device | |
| CN107120493A (en) | A kind of circular pipe robot | |
| US6109503A (en) | Internal pipe clamp | |
| CN107900239B (en) | A kind of squirrel-cage steel pipe jointing device | |
| CN204471133U (en) | A kind of novel winding drum inside weld floating device | |
| CN112157141A (en) | Steel pipe end rounding device | |
| CN120382316A (en) | A pipeline welding robot | |
| CN208945495U (en) | A kind of multidirectional multipath pipeline welding pipe hoop tool | |
| CN104128404A (en) | Thin walled pipe bending technology and device | |
| CN112548708A (en) | Mechanical polishing device for round bent pipe | |
| CN105904467B (en) | A round pipe self-centering docking robot | |
| CN109519649A (en) | A kind of self-interacting type pipe robot and its working method in pipeline | |
| CN212887198U (en) | Pipe fitting clamping device | |
| CN212442824U (en) | Automatic aluminum foil tube forming clamp | |
| CN218801025U (en) | Pipe repair equipment for hot-dip galvanized steel pipe continuous production line | |
| CN210451616U (en) | Clamp for welding expansion joint | |
| CN115722862A (en) | Pipeline welding clamp, pipeline welding robot and pipeline welding method | |
| CN206230132U (en) | A kind of pipe joint | |
| CN111872417A (en) | Expansion mechanism based on random variable universe fuzzy controller | |
| CN206912608U (en) | Pipeline butt adjustment positioning pipe clamp frock | |
| CN108787786B (en) | Manufacturing equipment for stainless steel pipe with steel-encased inner liner | |
| CN219312042U (en) | Inner support and outer hoop device for HDPE pipeline welding | |
| CN208977174U (en) | A kind of steel-pipe welding positioning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 313000 No. 288 Funan Road, Wuxing District, Huzhou City, Zhejiang Province Applicant after: Zhejiang Kingland Pipe Industry Co., Ltd. Address before: 313000 Yangjiabu, Huzhou Economic and Technological Development Zone, Huzhou City, Zhejiang Province Applicant before: Zhejiang Kingland Pipe Industry Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |