CN107225296A - Steel pipes with straight inner burr cutter - Google Patents
Steel pipes with straight inner burr cutter Download PDFInfo
- Publication number
- CN107225296A CN107225296A CN201710398718.4A CN201710398718A CN107225296A CN 107225296 A CN107225296 A CN 107225296A CN 201710398718 A CN201710398718 A CN 201710398718A CN 107225296 A CN107225296 A CN 107225296A
- Authority
- CN
- China
- Prior art keywords
- central shaft
- wall
- hole
- cylinder
- screw rod
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 43
- 239000010959 steel Substances 0.000 title claims abstract description 43
- 238000005520 cutting process Methods 0.000 claims abstract description 70
- 241000237509 Patinopecten sp. Species 0.000 claims abstract description 23
- 235000020637 scallop Nutrition 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 13
- 230000009467 reduction Effects 0.000 abstract description 9
- 238000003466 welding Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 208000013201 Stress fracture Diseases 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
- B23D79/02—Machines or devices for scraping
- B23D79/04—Machines or devices for scraping with rotating cutting-tool, e.g. for smoothing linings of bearings
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses steel pipes with straight inner burr cutter, including cylinder, central shaft, fixed plate and base, screw rod is fixedly arranged in the middle of in base upper surface, central shaft activity is extended downwardly behind fixed plate middle part, tapped through hole is provided with the middle part of central shaft, screw rod runs through after tapped through hole to the extension of cylinder upper end, multiple cutting sheets are provided with center shaft, multiple pitch cuttings are hinged with central shaft, multiple scallop holes are provided with central shaft outer wall, multiple connecting rods are provided with screw rod outer wall, connecting rod stretches out after running through scallop hole, block is fixed with the extension of connecting rod, multiple adjustment holes are provided with cylinder outer circle wall, limited block is provided with cylinder inner peripheral wall.In barrel body rotation after a few, the projecting height reduction of the dirty thing on steel pipe inner wall rotates screw rod once again so that the part increase that cutting sheet stretches out, and to expand the cleaning radius of cutting sheet, realizes the secondary cleaning to steel pipe inner wall, dirty thing then is cleared up into thorough.
Description
Technical field
The present invention relates to pipe fitting cleaning equipment, steel pipes with straight inner burr cutter is specifically referred to.
Background technology
During steel-pipe welding, to ensure good welding effect, typically by soldering tip with treating that Coiling Welded Pipe is placed in semi-enclosed casing
It is interior, while being conveniently passed through protective gas, Mars splashes when also avoiding welding.But after steel pipe partial welding is finished,
Weld seam is directly exposed in air, due to the difference of air themperature and weld seam own temperature, can cause weld seam from high temperature directly to
Low-temperature transformation, during which steel pipe seam is because the cataclysm of temperature, can reduce the intensity of itself so that the stability in use drop of steel pipe
It is low, steel pipe seam sealing-off can be directly contributed when serious；And it can be produced inside and outside steel pipe near weld seam in welding a certain amount of
Burr so that the flow velocity of steel pipe tube fluid when in use declines, and the projection of commissure is also easy to be corroded, and then causes weldering
Bulk strength declines at seam, reduces the service life of steel pipe；Traditional inner-burr cleaning equipment mainly focuses on weld seam and weld seam
The removing of solder residue at periphery and projection, and be scattering into during for welding the solder residue of steel pipe inner wall other parts with
And projection then clears up not thorough.
The content of the invention
It is an object of the invention to provide steel pipes with straight inner burr cutter, the burr on steel pipe inner wall can be carried out thorough
Bottom is cleared up, to improve the service life of steel pipe.
The purpose of the present invention is achieved through the following technical solutions：
Steel pipes with straight inner burr cutter, including cylinder, central shaft, fixed plate and base, fixed plate will be with the cylinders
The upper end of body is closed, and the base is fixedly connected with the lower end of cylinder, and screw rod, center are fixedly arranged in the middle of in the base upper surface
Axle activity is extended downwardly behind fixed plate middle part, and is provided with tapped through hole in the middle along the axis direction of central shaft, with spiral shell
The screw rod that line through hole is engaged runs through after tapped through hole to the extension of cylinder upper end, and multiple arcs are provided with the central shaft
Cutting sheet, multiple cutting sheets and central shaft are hinged and are evenly distributed on the outer circle wall of central shaft, and along central shaft
Radially be provided with multiple scallop holes connected with tapped through hole on its external wall, and scallop hole positioned at two adjacent cutting sheets it
Between, multiple connecting rods corresponding with scallop hole are provided with screw rod outer wall, connecting rod stretches out after running through scallop hole, and in connecting rod
Extension on be fixed with block, multiple adjustment holes are provided with its outer circle wall along the axial direction of the cylinder, cutting sheet runs through
Stretch out after adjustment hole, limited block is additionally provided with the cylinder inner peripheral wall, in use, the side of limited block is arc
Linear contact lay on the outside of concave surface and arc-shaped concave and the arc of cutting sheet.
During present invention work, screw rod runs through tapped through hole, according to the specific size of pipe diameter, by rotating screw rod, makes
Occur relative motion between screw rod and central shaft, and connecting rod drives block to move while moved in scallop hole, real
Existing spacing increase or reduction between block and cutting sheet, forces the position of multiple cutting sheets to change, i.e., cutting sheet is led to
Part increase or reduce that toning knothole stretches out so that the annulus constituted during the blade tip motion of multiple cutting sheets
The internal diameter of domain sizes and steel pipe matches, and then drives central shaft rotation, cutting on central shaft by outside driving equipment
Pitch cutting is rotated, and starts to be purged the dirty thing on steel pipe inner wall, and in barrel body rotation after a few, the dirty thing on steel pipe inner wall
Projecting height reduction, screw rod is now rotated once again so that the increase of part that cutting sheet stretches out, to expand the clear of cutting sheet
Radius is managed, the secondary cleaning to steel pipe inner wall is realized, dirty thing is then cleared up thorough, and steel pipe inner wall will not be caused to damage,
To improve the transfer efficiency of steel pipe.Further, multiple cutting sheets are evenly distributed on the outer circle wall of central shaft so that cutting
Piece can change it by blade angle governor motion according to the size of steel pipe caliber and remove radius, increase at any time or reduce and cut
The removing scope of pitch cutting, adds the use scope of the present invention；And when cutting sheet angular adjustment at utmost when, i.e. cutting sheet
Arc out conductor when being contacted with adjustment hole side wall, the arc-shaped concave of limited block is also contacted with cutting sheet arc lateral wall, to strengthen cutting
The stability of strutting system of pitch cutting in use, it is to avoid the active force suffered by cutting sheet produces larger with reaction force to itself
Impact, the probability that fractures of stress occurs for reduction cutting sheet.
The block is contacted in sector, and the inner arc surface of block with the outer circle wall of central shaft.Preferably, fan-shaped
Block madial wall is contacted with the outer circle wall of central shaft, and its end face is then contacted with the inner arc surface of cutting sheet, when screw rod stops
After rotation, the end face of block is directly contacted with cutting sheet to be contacted by a contact transformation for face, i.e., after cutting sheet stress, block
Stable support can be provided for it, to improve the cleaning efficiency of burr.
Along the axis direction of the central shaft, the external diameter value of the connecting rod is 1/3rd of the thickness value of scallop hole.It is many
Radially uniform distribution of the individual scallop hole being horizontal along central shaft, and in the axis direction of central shaft, the external diameter of connecting rod is
/ 3rd of the thickness value of scallop hole, it is ensured that connecting rod possesses enough activity spaces, between realizing between block and cutting sheet
Regulation away from size.
The discharge opening connected with inner barrel is provided with the base.The solder residue accumulated in fixed plate bottom is direct
Discharged by discharge opening, improve cleaning effect.
The present invention compared with prior art, has the following advantages and advantages：
1st, steel pipes with straight inner burr cutter of the present invention, drives central shaft rotation, positioned at center by outside driving equipment
Cutting sheet on axle is rotated, and starts to be purged the dirty thing on steel pipe inner wall, and in barrel body rotation after a few, steel pipe inner wall
On dirty thing projecting height reduction, screw rod is now rotated once again so that the increase of part that cutting sheet stretches out, is cut with expanding
The cleaning radius of pitch cutting, realizes the secondary cleaning to steel pipe inner wall, dirty thing then is cleared up into thorough, and steel pipe inner wall will not be made
Into damage, to improve the transfer efficiency of steel pipe；
2nd, steel pipes with straight inner burr cutter of the present invention, when cutting sheet angular adjustment at utmost when, i.e. cutting sheet
When arc out conductor is contacted with adjustment hole side wall, the arc-shaped concave of limited block is also contacted with cutting sheet arc lateral wall, to strengthen cutting
The stability of strutting system of piece in use, it is to avoid the active force suffered by cutting sheet produces larger with reaction force to itself
The probability that stress fractures occurs for impact, reduction cutting sheet.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is sectional view of the invention；
Mark and corresponding parts title in accompanying drawing：
1- central shafts, 2- cutting sheets, 3- fixed plates, 4- adjustment holes, 5- cylinders, 6- bases, 7- screw rods, 8- limited blocks, 9-
Connecting rod, 10- scallop holes, 11- blocks.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment includes cylinder 5, central shaft 1, fixed plate 3 and base 6, and fixed plate 3 will be with
The upper end of the cylinder 5 is closed, and the base 6 is fixedly connected with the lower end of cylinder 5, is fixed in the upper surface middle part of base 6
There is screw rod 7, the activity of central shaft 1 is extended downwardly behind the middle part of fixed plate 3, and is opened in the middle along the axis direction of central shaft 1
There is tapped through hole, the screw rod 7 being engaged with tapped through hole runs through to the extension of the upper end of cylinder 5 after tapped through hole, in the central shaft 1
On be provided with the cutting sheets 2 of multiple arcs, multiple cutting sheets 2 are hinged with central shaft 1 and are evenly distributed on the outer of central shaft 1
In circumferential wall, and multiple scallop holes 10 connected with tapped through hole, and scallop hole are provided with its external wall along the radial direction of central shaft 1
10 are located between two adjacent cutting sheets 2, and multiple connecting rods 9 corresponding with scallop hole 10, connecting rod are provided with the outer wall of screw rod 7
9 stretch out after scallop hole 10, and are fixed with block 11 on the extension of connecting rod 9, along the cylinder 5 axially at it
Multiple adjustment holes 4 are provided with outer circle wall, cutting sheet 2 stretches out after running through adjustment hole 4, on the inner peripheral wall of cylinder 5
Limited block 8 is additionally provided with, in use, the side of limited block 8 is arc-shaped concave and arc-shaped concave and the arc out conductor of cutting sheet 2 connect
Touch.
During work, screw rod 7 runs through tapped through hole, according to the specific size of pipe diameter, by rotating screw rod 7 so that spiral shell
Occur relative motion between bar 7 and central shaft 1, and connecting rod 9 drives block 11 to move while moved in scallop hole, it is real
Existing spacing increase or reduction between block 11 and cutting sheet 2, forces the position of multiple cutting sheets 2 to change, that is, cuts
The part that piece 2 is stretched out by adjustment hole 4 increases or reduced so that constituted during the blade tip motion of multiple cutting sheets 2
Annular region size and the internal diameter of steel pipe match, then drive central shaft 1 to rotate by outside driving equipment, positioned at center
Cutting sheet 2 on axle 1 is rotated, and starts to be purged the dirty thing on steel pipe inner wall, and after cylinder 5 rotates a few, steel pipe
The projecting height reduction of dirty thing on inwall, now rotates screw rod 7 once again so that the part increase that cutting sheet 2 stretches out, with
Expand the cleaning radius of cutting sheet 2, realize the secondary cleaning to steel pipe inner wall, dirty thing is then cleared up thorough, and will not be to steel
Inside pipe wall causes damage, to improve the transfer efficiency of steel pipe.Further, multiple cutting sheets 2 are evenly distributed on the outer of central shaft 1
In circumferential wall so that cutting sheet 2 can change it by blade angle governor motion according to the size of steel pipe caliber and remove radius,
Increase or reduce the removing scope of cutting sheet 2 at any time, add the use scope of the present invention；And when the angle of cutting sheet 2 is adjusted
Section at utmost when, i.e., when the arc out conductor of cutting sheet 2 is contacted with the side wall of adjustment hole 4, the arc-shaped concave of limited block 8 also with cutting
The arc lateral wall of piece 2 is contacted, to strengthen the stability of strutting system of cutting sheet 2 in use, it is to avoid the active force suffered by cutting sheet 2
Larger impact is produced to itself with reaction force, the probability that stress fractures occurs for reduction cutting sheet 2.
Preferably, the fan-shaped madial wall of block 11 is contacted with the outer circle wall of central shaft 1, and its end face then with cutting sheet
2 inner arc surface contact, after screw rod 7 stops operating, the end face of block 11 is directly contacted by a contact transformation with cutting sheet 2
Contacted for face, i.e., after the stress of cutting sheet 2, block 11 can provide stable support for it, to improve the cleaning efficiency of burr.
Preferably, radially uniform distribution of multiple scallop holes 10 being horizontal along central shaft 1, and in central shaft 1
Axis direction, the external diameter of connecting rod 9 is 1/3rd of the thickness value of scallop hole 10, it is ensured that it is empty that connecting rod 9 possesses enough activities
Between, to realize the regulation of spacing size between block 11 and cutting sheet 2.
Preferably, directly being discharged in the solder residue that the bottom of fixed plate 3 is accumulated by discharge opening, cleaning effect is improved.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (4)
1. steel pipes with straight inner burr cutter, including cylinder (5), central shaft (1), fixed plate (3) and base (6), fixed plate
(3) will be closed with the upper end of the cylinder (5), the base (6) is fixedly connected with the lower end of cylinder (5), it is characterised in that：
Base (6) upper surface middle part is fixed with screw rod (7), and central shaft (1) activity is extended downwardly behind fixed plate (3) middle part,
And tapped through hole is provided with the middle along the axis direction of central shaft (1), the screw rod (7) being engaged with tapped through hole runs through screw thread
Extend after through hole to cylinder (5) upper end, be provided with the cutting sheet (2) of multiple arcs on the central shaft (1), it is multiple described to cut
Pitch cutting (2) is hinged and is evenly distributed on the outer circle wall of central shaft (1) with central shaft (1), and exists along the radial direction of central shaft (1)
Multiple scallop holes (10) connected with tapped through hole are provided with its outer wall, and scallop hole (10) is located at two adjacent cutting sheets
(2) between, multiple connecting rods (9) corresponding with scallop hole (10) are provided with screw rod (7) outer wall, connecting rod runs through scallop hole (10)
After stretch out, and block (11) is fixed with the extension of connecting rod (9), along the cylinder (5) axially in its excircle
Multiple adjustment holes (4) are provided with wall, cutting sheet (2) stretches out after running through adjustment hole (4), in the cylinder (5) inner peripheral wall
On be additionally provided with limited block (8), in use, the side of limited block (8) is arc-shaped concave and arc-shaped concave and the arc of cutting sheet (2)
Outside linear contact lay.
2. steel pipes with straight inner burr cutter according to claim 1, it is characterised in that：The block (11) is in sector,
And the inner arc surface of block (11) is contacted with the outer circle wall of central shaft (1).
3. steel pipes with straight inner burr cutter according to claim 1, it is characterised in that：Along the axle of the central shaft (1)
Line direction, the external diameter value of the connecting rod (9) is 1/3rd of the thickness value of scallop hole (10).
4. steel pipes with straight inner burr cutter according to claim 1, it is characterised in that：It is provided with the base (6)
With the discharge opening connected inside cylinder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398718.4A CN107225296B (en) | 2017-05-31 | 2017-05-31 | Steel pipes with straight inner burr cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398718.4A CN107225296B (en) | 2017-05-31 | 2017-05-31 | Steel pipes with straight inner burr cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107225296A true CN107225296A (en) | 2017-10-03 |
| CN107225296B CN107225296B (en) | 2019-09-03 |
Family
ID=59933509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710398718.4A Expired - Fee Related CN107225296B (en) | 2017-05-31 | 2017-05-31 | Steel pipes with straight inner burr cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107225296B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916996A (en) * | 2021-12-01 | 2022-08-19 | 首都医科大学宣武医院 | Thrombus removing assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009039842A (en) * | 2007-08-10 | 2009-02-26 | Toyota Jidosha Hokkaido Kk | Deburring tool |
| CN103831478A (en) * | 2014-03-31 | 2014-06-04 | 成都振中电气有限公司 | Tool for removing burrs inside steel tube |
| CN203900636U (en) * | 2014-03-31 | 2014-10-29 | 成都振中电气有限公司 | Burr cleaning device in welding steel pipe |
| CN104128668A (en) * | 2014-07-28 | 2014-11-05 | 成都兴博达精密机械有限公司 | Use method of cutter removing burrs in steel pipe |
| CN104227141A (en) * | 2014-07-28 | 2014-12-24 | 成都兴博达精密机械有限公司 | Clearing method for burrs in straight seam steel tube |
| CN204248113U (en) * | 2014-10-29 | 2015-04-08 | 张家港市人和高精管有限公司 | A kind of steel pipe inner wall deburred device |
| CN205702721U (en) * | 2016-04-15 | 2016-11-23 | 宝鸡拓普达钛业有限公司 | Inwall process equipment |
| CN106141321A (en) * | 2015-03-26 | 2016-11-23 | 重庆盈捷科技有限公司 | Deburred device for steel pipe inner wall |
-
2017
- 2017-05-31 CN CN201710398718.4A patent/CN107225296B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009039842A (en) * | 2007-08-10 | 2009-02-26 | Toyota Jidosha Hokkaido Kk | Deburring tool |
| CN103831478A (en) * | 2014-03-31 | 2014-06-04 | 成都振中电气有限公司 | Tool for removing burrs inside steel tube |
| CN203900636U (en) * | 2014-03-31 | 2014-10-29 | 成都振中电气有限公司 | Burr cleaning device in welding steel pipe |
| CN104128668A (en) * | 2014-07-28 | 2014-11-05 | 成都兴博达精密机械有限公司 | Use method of cutter removing burrs in steel pipe |
| CN104227141A (en) * | 2014-07-28 | 2014-12-24 | 成都兴博达精密机械有限公司 | Clearing method for burrs in straight seam steel tube |
| CN204248113U (en) * | 2014-10-29 | 2015-04-08 | 张家港市人和高精管有限公司 | A kind of steel pipe inner wall deburred device |
| CN106141321A (en) * | 2015-03-26 | 2016-11-23 | 重庆盈捷科技有限公司 | Deburred device for steel pipe inner wall |
| CN205702721U (en) * | 2016-04-15 | 2016-11-23 | 宝鸡拓普达钛业有限公司 | Inwall process equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916996A (en) * | 2021-12-01 | 2022-08-19 | 首都医科大学宣武医院 | Thrombus removing assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107225296B (en) | 2019-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018404625B2 (en) | Mining drill and dust suction cover therefor, and dust removal device | |
| CN203900636U (en) | Burr cleaning device in welding steel pipe | |
| CN104325214B (en) | A kind of submerged-arc welding method of oval cross section Circumferential Welds In Cylinders and device thereof | |
| CN207464949U (en) | It is a kind of that the interior burnishing device thrown can be carried out to the pipeline of different tube diameters | |
| CN107225296A (en) | Steel pipes with straight inner burr cutter | |
| CN103831478B (en) | Steel-tube internal rag cutter | |
| JPS5841961B2 (en) | A cutting tool for a machine that cleans the outer surface of a pipe. | |
| CN107175595A (en) | A kind of Clean- vibration damping securing supports of pipeline processing | |
| CN113153147A (en) | Drilling tool in pressure relief hole of outburst coal seam hole protection and special hole external closed slag discharge system thereof | |
| CN104209262A (en) | Sealed fine pulping machine with spindle eccentric structure | |
| CN104227141A (en) | Clearing method for burrs in straight seam steel tube | |
| CN105903143A (en) | Novel long-range fire fighting monitor | |
| CN104128668A (en) | Use method of cutter removing burrs in steel pipe | |
| CN104048304A (en) | Horizontal spiral tube roller slag cooler | |
| CN204194148U (en) | A kind of horizontal decanter centrifuge | |
| CN106975801A (en) | The method for quickly eliminating of burrs on inner wall of pipe fitting | |
| CN107617786A (en) | The method for quickly eliminating of burrs on inner wall of pipe fitting | |
| CN107008709A (en) | A kind of cleaning mechanism for pipe fitting inner periphery wall dirt thing | |
| CN208814222U (en) | A kind of grain absorber outlet dust exhaust apparatus | |
| CN203778888U (en) | Cutter for removing burrs in welding steel pipes | |
| CN206996727U (en) | A kind of medium-speed pulverizer segmented rotary wind ring | |
| CN107051983A (en) | Rotary cutting method for the dirty thing of steel pipe inner wall | |
| CN107377539A (en) | A kind of cleaning mechanism for pipe fitting inner periphery wall dirt thing | |
| CN106141391A (en) | Welding burr scraping structure | |
| CN110153190A (en) | A kind of high stable piercing plug for seamless steel tubes |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190829 Address after: 610000 Sichuan city of Chengdu province high tech Zone sub Road No. 88 2 10 storey building No. 1002 Patentee after: Sichuan Xingzhi Zhihui Intellectual Property Operation Co.,Ltd. Address before: 610000 Sichuan city of Chengdu province Chenghua District two East 3rd Ring Rd section of Longtan Industrial Park Patentee before: CHENGDU HENGTONG ZHAOYE PRECISION MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230309 Address after: 610000 Rong Ou, 144 Qingbaijiang Road, Chengdu, Sichuan. Patentee after: Chengdu Zhirong Zhichuang Intellectual Property Operation Co.,Ltd. Address before: 610000 No. 10, 2 2, 88 Jiao Zi Road, Chengdu high tech Zone, Sichuan. Patentee before: Sichuan Xingzhi Zhihui Intellectual Property Operation Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |