CN114226834A - Pipe rod shearing device for underground operation construction - Google Patents
Pipe rod shearing device for underground operation construction Download PDFInfo
- Publication number
- CN114226834A CN114226834A CN202111358847.3A CN202111358847A CN114226834A CN 114226834 A CN114226834 A CN 114226834A CN 202111358847 A CN202111358847 A CN 202111358847A CN 114226834 A CN114226834 A CN 114226834A
- Authority
- CN
- China
- Prior art keywords
- side wall
- fixing
- fixedly connected
- pipe
- outer side
- 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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Links
- 238000010008 shearing Methods 0.000 title claims abstract description 32
- 238000010276 construction Methods 0.000 title claims abstract description 11
- 230000001788 irregular Effects 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
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
- B23D21/00—Machines or devices for shearing or cutting tubes
-
- 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
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a pipe rod shearing device for underground operation construction, which comprises two first shells and a shearing machine body, wherein the outer side wall of each first shell is fixedly connected with a second shell, the two second shells are fixedly connected through a fixing piece, the top of each fixing piece is provided with a fixing opening, the inner side wall of each fixing opening is fixedly connected with a fixing rod, and the inner side wall of each fixing opening is slidably connected with a sliding plate. According to the pipe rod cutting machine, under the mutual matching of the first shell, the second shell, the fixing port, the fixing piece, the fixing rod, the sliding plate, the arc-shaped ring block, the sealing fixing irregular ring piece, the driving device and the fastening device, the pipe rod is fixed in the ring formed by the pipe inlet and the sealing fixing irregular ring piece through the driving device and the fastening device, so that when an underground worker uses the pipe rod cutting machine body to cut the pipe rod, the time and labor are saved, the pipe rod does not need to be manually held, the pipe rod is convenient and fast to use, the cut surface cut by the pipe rod cutting machine body is smoother, and the post-treatment is simpler and more convenient.
Description
Technical Field
The invention relates to the technical field of underground cutting, in particular to a pipe rod shearing device for underground operation construction.
Background
In recent years, with the increasing demand for energy and the rapid development of the marine oil industry, the development of deep water and ultra-deep water oil wells is increasing, and pipe rods are necessary materials for producing deep water and ultra-deep water oil and gas wells, so that the pipe rods are largely used in oil and gas development, and pipe rod cutting is an essential operation procedure in the processes of pipe rod construction, ocean platform dismantling, well abandoning engineering and the like.
Present underground worker generally can use the cutting machine to cut the pipe pole, and the cutting machine is when cutting the pipe pole, because cutting blade and pipe pole contact can let the pipe pole produce the vibration, needs a plurality of workman to hold up, just can cut, and is more time-consuming and energy-consuming, and current manual cutting pipe pole, the cutting plane is not very level and smooth, this trouble of bringing just for subsequent processing.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a plurality of workers are required to support a pipe rod manually to cut by using a cutting machine, time and labor are wasted, the cut surface is not flat, and the subsequent treatment is troublesome.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pipe pole shearing device for underground operation construction comprises two first shells and a shearing machine body, wherein the outer side wall of the first shell is fixedly connected with a second shell, the two second shells are fixedly connected through a fixing piece, the top of the fixing piece is provided with a fixing port, the inner side wall of the fixing port is fixedly connected with a fixing rod, the inner side wall of the fixing port is slidably connected with a sliding plate, the outer side wall of the sliding plate is provided with a sliding port, the outer side wall of the fixing rod is slidably connected with the inner side wall of the sliding port, the end part of the sliding plate is fixedly connected with the shearing machine body, the outer side wall of the first shell is provided with a pipe inlet, the inner side wall of the pipe inlet is fixedly connected with two symmetrically arranged arc-shaped ring blocks, the outer side walls of the two arc-shaped ring blocks are slidably connected with the same sealing fixed irregular ring piece, and the inner side wall of the second shell is provided with a driving device for rotating the sealing fixed irregular ring piece, and a fastening device is arranged on the inner side wall of the sealing and fixing irregular ring piece, and a protection device is arranged between every two adjacent first shells and every two adjacent second shells.
Preferably, drive arrangement includes the servo motor of one of them second casing inside wall of fixed connection, the first pivot of servo motor output shaft fixedly connected with, first pivot tip rotates with another second casing inside wall to be connected, sealed fixed irregular ring spare lateral wall fixedly connected with irregular ring gear, one of them the first casing inside wall rotates and connects a plurality of second pivots, another a plurality of third pivots are connected in the rotation of first casing inside wall, second pivot and third pivot lateral wall all fixedly cup jointed the gear, the gear is connected with the meshing of irregular ring gear, and is adjacent servo motor output shaft and one of them second pivot are connected through first belt drive, and is adjacent first pivot and third pivot are connected through second belt drive.
Preferably, the fastening device comprises a plurality of rubber triangular pieces fixedly connected to the inner side wall of the sealing and fixing irregular ring piece.
Preferably, the guard comprises two protective nets fixedly connected between the two first and second housings.
Preferably, a handle is fixedly connected to the end of the sliding plate.
Preferably, it is adjacent servo motor output shaft and one of them second pivot lateral wall all fixed cover be equipped with the first belt pulley of first belt looks adaptation, adjacent first pivot and third pivot lateral wall all fixed cover be equipped with the second belt pulley of second belt looks adaptation.
Preferably, the cross-sectional shape of the fixing rod is elliptical.
Preferably, a plurality of the rubber triangular pieces are uniformly distributed on the inner side wall of the sealing and fixing irregular ring piece in an annular shape.
Preferably, the second housing outer side wall is fixedly connected with a handrail.
The invention has the beneficial effects that:
1. under the mutual cooperation of the first shell, the second shell, the fixed port, the fixing piece, the fixed rod, the slide plate, the arc-shaped ring block, the fixed irregular ring piece of sealed, drive arrangement and fastening device, fix the pipe pole in the ring that comprises the inlet pipe mouth and the fixed irregular ring piece of sealed through drive arrangement and fastening device, let the workman in the pit when using cutter body cutting pipe pole, labour saving and time saving more need not the manual work and is holding up the pipe pole, and is more convenient, and the cutting plane that the cutter body cut out is more level and more smooth, let the post processing more simple and convenient.
2. Under the interaction of the first shell, the second shell, the fixing port, the fixing piece, the fixing rod, the sliding plate, the arc-shaped ring block, the sealing and fixing irregular ring piece and the protection device, the shearing machine body works under the protection of the protection device, so that underground workers can cut pipe rods more safely.
Drawings
FIG. 1 is a schematic structural diagram of a pipe shearing device for downhole operation construction according to the present invention;
fig. 2 is a sectional view of a first housing of a pipe stick shearing apparatus for downhole operation according to the present invention;
fig. 3 is a sectional view of a second housing of a pipe stick shearing apparatus for downhole operation according to the present invention;
FIG. 4 is a top view of a pipe string shearing apparatus for downhole operations according to the present invention;
fig. 5 is a sectional view of a first housing in a pipe stick shearing apparatus for downhole operation according to the present invention.
In the figure: 1. a first housing; 2. a shear body; 3. a second housing; 4. a fixing member; 5. a fixed port; 6. fixing the rod; 7. a slide plate; 8. a sliding port; 9. an inlet pipe orifice; 10. an arc-shaped ring block; 11. sealing and fixing the irregular ring piece; 12. a servo motor; 13. a first rotating shaft; 14. an irregular toothed ring; 15. a second rotating shaft; 16. a gear; 17. a first belt; 18. a third rotating shaft; 19. a second belt; 20. a rubber triangle; 21. a protective net; 22. a handle; 23. a handrail.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, a pipe pole shearing device for downhole operation construction comprises two first shells 1 and a shearing machine body 2, the outer side wall of the first shell 1 is fixedly connected with a second shell 3, the two second shells 3 are fixedly connected through a fixing piece 4, the top of the fixing piece 4 is provided with a fixing port 5, the inner side wall of the fixing port 5 is fixedly connected with a fixing rod 6, the cross section of the fixing rod 6 is elliptical, the inner side wall of the fixing port 5 is slidably connected with a sliding plate 7, the end part of the sliding plate 7 is fixedly connected with a handle 22, the outer side wall of the sliding plate 7 is provided with a sliding port 8, the outer side wall of the fixing rod 6 is slidably connected with the inner side wall of the sliding port 8, the end part of the sliding plate 7 is fixedly connected with the shearing machine body 2, the outer side wall of the first shell 1 is provided with a pipe inlet 9, the inner side wall of the pipe inlet 9 is fixedly connected with two symmetrically arranged arc-shaped ring blocks 10, the outer side walls of the two arc-shaped ring blocks 10 are slidably connected with a same sealed and fixed irregular ring piece 11, the outer side wall of the second shell 3 is fixedly connected with a handrail 23.
The inner side wall of the second shell 3 is provided with a driving device for rotating the sealed fixed irregular ring part 11, the driving device comprises a servo motor 12 fixedly connected with the inner side wall of one of the second shells 3, the output shaft of the servo motor 12 is fixedly connected with a first rotating shaft 13, the end part of the first rotating shaft 13 is rotatably connected with the inner side wall of the other second shell 3, the outer side wall of the sealed fixed irregular ring part 11 is fixedly connected with an irregular toothed ring 14, the inner side wall of one of the first shells 1 is rotatably connected with a plurality of second rotating shafts 15, the inner side wall of the other first shell 1 is rotatably connected with a plurality of third rotating shafts 18, the outer side walls of the second rotating shafts 15 and the third rotating shafts 18 are fixedly connected with gears 16, the gears 16 are meshed with the irregular toothed ring 14, the output shaft of the adjacent servo motor 12 is in transmission connection with one of the second rotating shafts 15 through a first belt 17, the adjacent first rotating shafts 13 are in transmission connection with the third rotating shafts 18 through a second belt 19, the outer side walls of the output shaft of the adjacent servo motor 12 and one of the second rotating shafts 15 are fixedly sleeved with a first belt pulley matched with the first belt 17, and the outer side walls of the adjacent first rotating shaft 13 and the adjacent third rotating shaft 18 are fixedly sleeved with a second belt pulley matched with the second belt 19.
The fastening device is arranged on the inner side wall of the sealed and fixed irregular ring piece 11 and comprises a plurality of rubber triangular pieces 20 fixedly connected to the inner side wall of the sealed and fixed irregular ring piece 11, and the rubber triangular pieces 20 are annularly and uniformly distributed on the inner side wall of the sealed and fixed irregular ring piece 11.
A protection device is arranged between two adjacent first shells 1 and second shells 3, and the protection device comprises two protection nets 21 fixedly connected between the two first shells 1 and the two second shells 3.
The working principle is as follows: when a downhole worker needs to use the device to cut a pipe rod, the initial positions of two sealing and fixing irregular ring pieces 11 are shown in fig. 1, the pipe rod enters the pipe inlet 9, the servo motor 12 is started, an output shaft of the servo motor 12 drives the first rotating shaft 13 to rotate, the first rotating shaft 13 drives the second rotating shaft 15 to rotate through the first belt 17, the second rotating shaft 15 drives the gear 16 thereon to rotate, the gear 16 drives the irregular toothed ring 14 and the sealing and fixing irregular ring pieces 11 to rotate on the outer side wall of the arc-shaped ring block 10, the sealing and fixing irregular ring pieces 11 rotate on the arc-shaped ring block 10 until the sealing and fixing irregular ring pieces 11 seal the pipe inlet 9, so that the pipe rod is fixed in a ring formed by the pipe inlet 9 and the sealing and fixing irregular ring pieces 11, meanwhile, the pipe rod is fixed by the plurality of rubber triangular pieces 20, and the servo motor 12 is closed;
the underground worker pushes the handle 22, so that the sliding opening 8 of the sliding plate 7 moves on the fixed rod 6, the sliding plate 7 moves to drive the shearing machine body 2 to move, the shearing machine body 2 is started until the shearing machine body 2 is in contact with the pipe rod, the shearing machine body 2 cuts the pipe rod to be cut off, after the pipe rod is cut off, the underground worker moves the handle 22 backwards to stop the shearing machine body 2 from moving, the servo motor 12 is started to rotate reversely, the output shaft of the servo motor 12 drives the first rotating shaft 13 to rotate reversely, the whole process is opposite to the above process until the sealing fixing irregular ring piece 11 returns to the initial position, the servo motor 12 is turned off, and the underground worker takes the device away.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A pipe pole shearing device for underground operation construction comprises two first shells (1) and a shearing machine body (2), and is characterized in that the outer side wall of the first shell (1) is fixedly connected with a second shell (3), the two second shells (3) are fixedly connected through a fixing piece (4), a fixing port (5) is formed in the top of the fixing piece (4), a fixing rod (6) is fixedly connected to the inner side wall of the fixing port (5), a sliding plate (7) is slidably connected to the inner side wall of the fixing port (5), a sliding port (8) is formed in the outer side wall of the sliding plate (7), the outer side wall of the fixing rod (6) is slidably connected with the inner side wall of the sliding port (8), the end part of the sliding plate (7) is fixedly connected with the shearing machine body (2), an inlet pipe hole (9) is formed in the outer side wall of the first shell (1), and two arc-shaped ring blocks (10) which are symmetrically arranged are fixedly connected to the inner side wall of the inlet pipe hole (9), the outer side walls of the two arc-shaped ring blocks (10) are connected with the same sealing and fixing irregular ring piece (11) in a sliding mode, a driving device for driving the sealing and fixing irregular ring piece (11) to rotate is arranged on the inner side wall of the second shell (3), a fastening device is arranged on the inner side wall of the sealing and fixing irregular ring piece (11), and a protection device is arranged between the first shell (1) and the second shell (3) in two adjacent modes.
2. The pipe shearing device for the downhole operation construction as claimed in claim 1, wherein the driving device comprises a servo motor (12) fixedly connected with the inner side wall of one of the second housings (3), the output shaft of the servo motor (12) is fixedly connected with a first rotating shaft (13), the end of the first rotating shaft (13) is rotatably connected with the inner side wall of the other second housing (3), the outer side wall of the sealing and fixing irregular ring member (11) is fixedly connected with an irregular toothed ring (14), the inner side wall of one of the first housings (1) is rotatably connected with a plurality of second rotating shafts (15), the inner side wall of the other first housing (1) is rotatably connected with a plurality of third rotating shafts (18), the outer side walls of the second rotating shafts (15) and the third rotating shafts (18) are fixedly connected with gears (16), and the gears (16) are engaged with the irregular toothed ring (14), the output shaft of the adjacent servo motor (12) is in transmission connection with one second rotating shaft (15) through a first belt (17), and the adjacent first rotating shaft (13) is in transmission connection with a third rotating shaft (18) through a second belt (19).
3. A pipe string cutter device for downhole working according to claim 1, wherein the fastening means comprises a plurality of rubber triangles (20) fixedly attached to the inner side wall of the sealingly fixed irregular ring member (11).
4. A pipe string shearing device for downhole working operations according to claim 1, characterised in that the shielding device comprises two protective screens (21) fixedly connected between the two first (1) and second (3) housings.
5. A pipe string shearing device for downhole working operations according to claim 1, characterised in that a handle (22) is fixedly connected to the end of the skid plate (7).
6. The pipe shearing device for the downhole operation construction as claimed in claim 2, wherein a first belt pulley adapted to the first belt (17) is fixedly sleeved on the outer side wall of the adjacent servo motor (12) output shaft and one of the second rotating shafts (15), and a second belt pulley adapted to the second belt (19) is fixedly sleeved on the outer side wall of the adjacent first rotating shaft (13) and the adjacent third rotating shaft (18).
7. A pipe shearing device for downhole working operations according to claim 1, characterized in that the cross-sectional shape of the fixing rod (6) is oval.
8. A pipe shearing device for downhole operation according to claim 3, wherein a plurality of said rubber triangles (20) are uniformly distributed on the inner side wall of the sealing and fixing irregular ring member (11) in a ring shape.
9. A pipe string shearing device for downhole working according to claim 1, characterised in that a handrail (23) is fixedly connected to the outer side wall of the second housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358847.3A CN114226834B (en) | 2021-11-17 | 2021-11-17 | Pipe rod shearing device for underground operation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358847.3A CN114226834B (en) | 2021-11-17 | 2021-11-17 | Pipe rod shearing device for underground operation construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114226834A true CN114226834A (en) | 2022-03-25 |
| CN114226834B CN114226834B (en) | 2024-05-03 |
Family
ID=80749697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111358847.3A Active CN114226834B (en) | 2021-11-17 | 2021-11-17 | Pipe rod shearing device for underground operation construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114226834B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4305205A (en) * | 1980-04-09 | 1981-12-15 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Open ended tubing cutters |
| US5836079A (en) * | 1996-06-03 | 1998-11-17 | Cronin; Michael E. | Pipe cutting tool |
| US20050086809A1 (en) * | 2003-10-27 | 2005-04-28 | Myers Kent J. | Hand held pipe cutters |
| WO2006096172A1 (en) * | 2005-03-04 | 2006-09-14 | Milisav Lazarevic | Power tool for tube cutting and treating |
| US20090165306A1 (en) * | 2007-12-26 | 2009-07-02 | Nasiell Gustav M | Tubing cutting apparatus |
| US20100154223A1 (en) * | 2008-12-20 | 2010-06-24 | Ching-Su Chiu | Pipe cutter |
| CN102133658A (en) * | 2010-01-26 | 2011-07-27 | 泉峰(中国)贸易有限公司 | Pipe cutting machine |
| CN108284463A (en) * | 2017-01-10 | 2018-07-17 | 里奇工具公司 | C-type tubing cutter |
| CN112839762A (en) * | 2018-10-09 | 2021-05-25 | 科尼佩克斯-沃克.C.古斯塔夫普奇公司 | Pipe cutting device |
-
2021
- 2021-11-17 CN CN202111358847.3A patent/CN114226834B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4305205A (en) * | 1980-04-09 | 1981-12-15 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Open ended tubing cutters |
| US5836079A (en) * | 1996-06-03 | 1998-11-17 | Cronin; Michael E. | Pipe cutting tool |
| US20050086809A1 (en) * | 2003-10-27 | 2005-04-28 | Myers Kent J. | Hand held pipe cutters |
| WO2006096172A1 (en) * | 2005-03-04 | 2006-09-14 | Milisav Lazarevic | Power tool for tube cutting and treating |
| US20090165306A1 (en) * | 2007-12-26 | 2009-07-02 | Nasiell Gustav M | Tubing cutting apparatus |
| US20100154223A1 (en) * | 2008-12-20 | 2010-06-24 | Ching-Su Chiu | Pipe cutter |
| CN102133658A (en) * | 2010-01-26 | 2011-07-27 | 泉峰(中国)贸易有限公司 | Pipe cutting machine |
| CN108284463A (en) * | 2017-01-10 | 2018-07-17 | 里奇工具公司 | C-type tubing cutter |
| CN112839762A (en) * | 2018-10-09 | 2021-05-25 | 科尼佩克斯-沃克.C.古斯塔夫普奇公司 | Pipe cutting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114226834B (en) | 2024-05-03 |
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Effective date of registration: 20240401 Address after: 719000 Across from Liu Nianfang Xiaolu Auto Repair Shop in Guojiamiao Village, Jingbian County, Yulin City, Shaanxi Province Applicant after: Jingbian Hongshun Industry and Trade Co.,Ltd. Country or region after: China Address before: 322000 No.5 QIHANG Road, Houzhai street, Yiwu City, Jinhua City, Zhejiang Province Applicant before: Lv Zhanhai Country or region before: China |
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