CN113089670A - Underwater cutting device for maintaining old bridge pile foundation - Google Patents
Underwater cutting device for maintaining old bridge pile foundation Download PDFInfo
- Publication number
- CN113089670A CN113089670A CN202110575920.6A CN202110575920A CN113089670A CN 113089670 A CN113089670 A CN 113089670A CN 202110575920 A CN202110575920 A CN 202110575920A CN 113089670 A CN113089670 A CN 113089670A
- Authority
- CN
- China
- Prior art keywords
- cutting device
- pile foundation
- old bridge
- bridge pile
- mounting
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/04—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by cutting-off under water
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses an underwater cutting device for old bridge pile foundation maintenance, and particularly relates to the technical field of pile foundation maintenance. According to the invention, the distance between the two arc-shaped clamping plates can be adjusted through the extension and contraction of the second adjusting rod, so that the arc-shaped clamping plates can clamp old bridge pile foundations with different sizes, meanwhile, the positions of the arc-shaped clamping plates can be adjusted through the rotation of the lead screw, and further, the saw blade can be attached to the outer wall of the old bridge pile foundations, so that the first motor can drive the saw blade to move, the saw blade can cut the old bridge pile foundations, and further, the maintenance efficiency of the old bridge pile foundations can be improved.
Description
Technical Field
The invention relates to the technical field of pile foundation maintenance, in particular to an underwater cutting device for old bridge pile foundation maintenance.
Background
The deep foundation consisting of piles and pile caps connected with the pile tops or the single-pile foundation connected with the piles by the piles is called a low-cap pile foundation for short, if the pile bodies are completely buried in the soil and the bottom surfaces of the caps are contacted with the soil body; if the upper part of the pile body is exposed out of the ground and the bottom of the pile cap is positioned above the ground, the pile body is called a high pile cap foundation, the building pile foundation is usually a low pile cap pile foundation, and the pile foundation is widely applied in high-rise buildings.
The prior art has the following defects: when cutting old bridge pile foundation, current underwater cutting device can't be convenient adjusts cutting device, and then makes cutting device can't laminate with old bridge pile foundation, and then makes cutting device can't cut the different positions of not unidimensional pile foundation, and then can influence the cutting efficiency of pile foundation, and then can influence the cost that old bridge pile foundation maintained.
Disclosure of Invention
The invention provides an underwater cutting device for maintaining an old bridge pile foundation, which aims to solve the problems of inconvenient adjustment and high cutting efficiency of the cutting device in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an underwater cutting device for old bridge pile foundation is maintained, includes the mounting panel, the top of mounting panel is provided with first regulation pole, one side of mounting panel is provided with the pneumatic cylinder, the both sides of pneumatic cylinder all are provided with the mount pad, the inside of mount pad is provided with the sliding seat, one side that the mount pad was kept away from to the sliding seat is provided with arc splint, the inside of arc splint is provided with a plurality of axis of rotation, one of them the top of axis of rotation is provided with first motor, the outside of axis of rotation is provided with the sprocket, and is a plurality of be provided with the saw blade between the sprocket.
Preferably, the inner wall of the mounting seat is provided with a limiting groove, the inner wall of the limiting groove is movably connected with the movable seat, and one side of the movable seat, which is far away from the mounting seat, is fixedly connected with the arc-shaped clamping plate.
Preferably, the inner wall of the limiting groove is rotatably provided with a screw rod, the inner wall of the movable seat is provided with a limiting hole, and the inner wall of the limiting hole is in threaded connection with the outer side of the screw rod.
Preferably, a movable plate is movably mounted at the top end of the mounting seat, a second motor is fixedly mounted at the top end of the movable plate, and the second motor is in transmission connection with the screw rod through an output shaft.
Preferably, the arc inboard of arc splint has seted up the mounting groove, the inner wall and the axis of rotation of mounting groove are rotated and are connected, the outside and the sprocket fixed connection of axis of rotation.
Preferably, one side of the top end of the arc-shaped clamping plate, which is close to the movable seat, is fixedly connected with a first motor, and the first motor is in transmission connection with one of the rotating shafts through an output shaft.
Preferably, the plurality of rotating shafts are arranged in the mounting groove at equal intervals, the inner wall of the mounting groove is movably connected with the saw blade, and the saw blade is a high-strength metal material member.
Preferably, the top and the first regulation pole fixed connection of mounting panel, one side and the pneumatic cylinder fixed connection of mounting panel, the equal movable mounting in both sides of pneumatic cylinder has the second to adjust the pole.
Preferably, one end, far away from the hydraulic cylinder, of the second adjusting rod is fixedly connected with the mounting seat, and one side of the mounting seat is movably connected with the mounting plate.
Preferably, the second adjusting rod and the first adjusting rod are both arranged in a telescopic structure.
The invention has the technical effects and advantages that:
1. according to the invention, the distance between the two arc-shaped clamping plates can be adjusted through the extension and contraction of the second adjusting rod, so that the arc-shaped clamping plates can clamp old bridge pile foundations with different sizes, the movable seat can be driven to move through the rotation of the lead screw, the positions of the arc-shaped clamping plates can be adjusted, the saw blades can be attached to the outer wall of the old bridge pile foundations, the first motor can drive the saw blades to move, the saw blades can cut the old bridge pile foundations, the cutting device can be adjusted more conveniently, the cutting device can rapidly cut the old bridge pile foundations, and the maintenance efficiency of the old bridge pile foundations can be further improved;
2. according to the invention, the cutting device can be connected with an external power mechanism through the first adjusting rod, and the depth of the cutting device can be adjusted through the external power mechanism, so that the cutting device can go deep into the water to cut a pile foundation, and meanwhile, the cutting device can be conveniently taken out of the water, so that a worker can conveniently inspect and maintain the cutting device, the normal operation of the cutting device can be ensured, and the working efficiency of the cutting device can be improved.
Drawings
Fig. 1 is an exploded perspective view of the present invention.
Fig. 2 is a three-dimensional structure view of the arc splint of the present invention.
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention.
Fig. 4 is a perspective view of the present invention.
Fig. 5 is a perspective view of the present invention in an adjusted state.
The reference signs are: 1. mounting a plate; 2. a first adjusting lever; 3. a hydraulic cylinder; 4. a second adjusting lever; 5. a mounting seat; 6. defining a slot; 7. a movable seat; 8. an arc-shaped splint; 9. mounting grooves; 10. a rotating shaft; 11. a sprocket; 12. a saw blade; 13. a first motor; 14. a screw rod; 15. defining an aperture; 16. a movable plate; 17. a second motor.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an underwater cutting device for old bridge pile foundation maintenance, which comprises a mounting plate 1, wherein a first adjusting rod 2 is arranged at the top end of the mounting plate 1, a hydraulic cylinder 3 is arranged on one side of the mounting plate 1, mounting seats 5 are respectively arranged on two sides of the hydraulic cylinder 3, a movable seat 7 is arranged inside each mounting seat 5, an arc-shaped clamping plate 8 is arranged on one side, away from the mounting seat 5, of each movable seat 7, a plurality of rotating shafts 10 are arranged inside each arc-shaped clamping plate 8, a first motor 13 is arranged at the top end of one rotating shaft 10, chain wheels 11 are arranged on the outer sides of the rotating shafts 10, saw blades 12 are arranged among the chain wheels 11, the position of the mounting plate 1 can be adjusted through the first adjusting rod 2, so that the cutting device can go deep into the water to be in contact with the old bridge pile foundation, and then can adjust the distance between two arc splint 8 through pneumatic cylinder 3, make arc splint 8 can carry out the centre gripping to the outer wall of old bridge pile foundation, make cutting device can adapt to the cutting work of the old bridge pile foundation of unidimensional not, work can drive one of them axis of rotation 10 through first motor 13 and rotate, and then can drive sprocket 11 and rotate, and then can drive saw blade 12 and rotate, make saw blade 12 can cut the pile foundation, and then make the maintenance of pile foundation more convenient, and then can improve the efficiency that the work was maintained to the pile foundation.
Limiting groove 6 is seted up to the inner wall of mount pad 5, limiting groove 6's inner wall and sliding seat 7 swing joint, one side and arc splint 8 fixed connection that mount pad 5 was kept away from to sliding seat 7, can install and fix arc splint 8 through sliding seat 7, limiting groove 6 can be injectd the removal of sliding seat 7, make the removal of sliding seat 7 more stable, and then make the convenient stability more of regulation of arc splint 8, can avoid arc splint 8 the condition of skew to appear in accommodation process, and then can guarantee the stability of saw blade 12, and then can protect saw blade 12, can avoid saw blade 12 to appear damaging because of the skew, and then can prolong the life of saw blade 12.
The inner wall of restriction groove 6 rotates and installs lead screw 14, restricted hole 15 has been seted up to the inner wall of sliding seat 7, the inner wall of restricted hole 15 and the outside threaded connection of lead screw 14, the rotation of lead screw 14 can drive sliding seat 7 and remove in restriction groove 6 inside, and then can adjust arc splint 8's position for cutting device can cut the different positions of pile foundation, makes cutting device's regulation more accurate, and then makes the cutting of old bridge pile foundation more convenient, and then can improve the maintenance efficiency of old bridge pile foundation.
The top movable mounting of mount pad 5 has fly leaf 16, the top fixed mounting of fly leaf 16 has second motor 17, be connected through output shaft transmission between second motor 17 and the lead screw 14, fly leaf 16 can seal the open-top of injecing groove 6, can install and fix second motor 17 simultaneously, second motor 17 work can drive lead screw 14 and rotate, and then through the lead screw 14 with inject the threaded connection between the hole 15 inner wall, make movable seat 7 can remove in the outside of lead screw 14, and then can provide power for the regulation of arc splint 8, and then can carry out accurate regulation to cutting device, and then make cutting device can carry out the pile foundation cutting to the different positions of old bridge, and then can improve the maintenance efficiency of old bridge.
One side and first motor 13 fixed connection that arc splint 8's top is close to movable seat 7, be connected through output shaft transmission between first motor 13 and one of them axis of rotation 10, arc splint 8 can be installed and fixed first motor 13 and axis of rotation 10, can drive one of them axis of rotation 10 through first motor 13 work and rotate, and then can drive sprocket 11 and rotate, and then can drive saw blade 12 and move about, can prescribe a limit to the activity of saw blade 12 through a plurality of axis of rotation 10, make saw blade 12 be the arc activity, make saw blade 12 can laminate with the pile foundation, make the cutting of pile foundation more convenient.
A plurality of axis of rotation 10 is at the inside equidistant range of mounting groove 9, the inner wall and the saw blade 12 swing joint of mounting groove 9, saw blade 12 sets up to the metal material component of high strength, and the activity of saw blade 12 can cut the pile foundation, and mounting groove 9 can be injectd saw blade 12, and then can avoid saw blade 12 to break away from arc splint 8 is inside, make the more stable of activity of saw blade 12, and then can avoid saw blade 12 to come off from 11 surfaces of sprocket, and then can guarantee the safety of sprocket 11 and saw blade 12, can prolong the life of saw blade 12, and then can improve the maintenance efficiency of old bridge pile foundation.
The top and the first 2 fixed connection of regulation poles of mounting panel 1, one side and the 3 fixed connection of pneumatic cylinder of mounting panel 1, the equal movable mounting in both sides of pneumatic cylinder 3 has second regulation pole 4, and the activity of first regulation pole 2 can drive mounting panel 1 and remove, makes cutting device can go deep into under water, can adjust cutting device position under water, and then make cutting device can be better contact with old bridge pile foundation, pneumatic cylinder 3 work can drive second regulation pole 4 and extend and shrink, and then can provide power for the regulation of arc splint 8, and then make cutting device's regulation more convenient, and then can improve cutting device's work efficiency.
The one end and the 5 fixed connection of mount pad that pneumatic cylinder 3 was kept away from to second regulation pole 4, one side and the 1 swing joint of mounting panel of mount pad 5, the extension and the shrink of second regulation pole 4 can drive mount pad 5 and remove, and then can adjust the distance between two arc splint 8 for arc splint 8 can carry out the centre gripping to the old bridge pile foundation of unidimensional not, and then make cutting device can cut the old bridge pile foundation of unidimensional not, can improve cutting device's cutting efficiency, can reduce the cost that old bridge pile foundation maintained.
The second is adjusted pole 14 and first regulation pole 2 and is all set up to the elasticity structure, and the setting of elasticity structure makes the second adjust pole 4 and first regulation pole 2 can be better extend and contract, and then can be better adjust cutting device and arc splint 8, and then cutting device's regulation is more convenient, and then can improve cutting device's cutting efficiency.
The implementation mode is specifically as follows: the first adjusting rod 2 is driven to extend through the work of an external power mechanism, so that the cutting device can be deeply underwater, the second adjusting rod 4 can be driven to extend towards two sides through the work of a hydraulic cylinder 3, the mounting seat 5 can move towards two sides, the distance between two arc-shaped clamping plates 8 can be adjusted, the cutting device can approach towards the outer wall of an old bridge device through an external mechanism, the arc-shaped clamping plates 8 can clamp and fix the outer wall of an old bridge pile foundation through the work of the hydraulic cylinder 3, meanwhile, the lead screw 14 can be driven to rotate through the work of a second motor 17, so that the movable seat 7 can move on the inner wall of the limiting groove 6, the position of the arc-shaped clamping plates 8 can be accurately adjusted, and then one rotating shaft 10 can be driven to rotate through the work of a first motor 13, and then can drive sprocket 11 and take place to rotate, and then can drive saw blade 12 and move about in mounting groove 9 is inside, and then make saw blade 12 can cut old bridge pile foundation, along with going on of cutting work, the distance between two arc splint 8 can constantly be adjusted in the work of pneumatic cylinder 3, make adjusting that cutting device can be better, and then make cutting device can be better cut old bridge device, and then can improve the work efficiency that old bridge device maintained, this embodiment has specifically solved among the prior art that cutting device adjusts inconveniently, problem that cutting efficiency is low
The working principle of the invention is as follows:
referring to the attached drawings 1-5 of the specification, the work of an external power mechanism drives a first adjusting rod 2 to extend, and further the cutting device can go deep into underwater, the arc-shaped clamping plate 8 can clamp and fix the outer wall of an old bridge pile foundation through the work of a hydraulic cylinder 3, and meanwhile, the screw rod 14 can be driven to rotate through the work of a second motor 17, and further the position of the arc-shaped clamping plate 8 can be precisely adjusted, and then one of the rotating shafts 10 can be driven to rotate through the work of a first motor 13, and further the chain wheel 11 can be driven to rotate, and further the saw blade 12 can be used for cutting the old bridge pile foundation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. An underwater cutting device for old bridge pile foundation maintenance, includes mounting panel (1), its characterized in that: the top of mounting panel (1) is provided with first regulation pole (2), one side of mounting panel (1) is provided with pneumatic cylinder (3), the both sides of pneumatic cylinder (3) all are provided with mount pad (5), the inside of mount pad (5) is provided with sliding seat (7), one side that mount pad (5) were kept away from in sliding seat (7) is provided with arc splint (8), the inside of arc splint (8) is provided with a plurality of axis of rotation (10), one of them the top of axis of rotation (10) is provided with first motor (13), the outside of axis of rotation (10) is provided with sprocket (11), and is a plurality of be provided with saw blade (12) between sprocket (11).
2. An underwater cutting device for old bridge pile foundation maintenance according to claim 1, wherein: the inner wall of the mounting seat (5) is provided with a limiting groove (6), the inner wall of the limiting groove (6) is movably connected with the movable seat (7), and one side, far away from the mounting seat (5), of the movable seat (7) is fixedly connected with the arc-shaped clamping plate (8).
3. An underwater cutting device for old bridge pile foundation maintenance according to claim 2, wherein: the inner wall of the limiting groove (6) is rotatably provided with a screw rod (14), the inner wall of the movable seat (7) is provided with a limiting hole (15), and the inner wall of the limiting hole (15) is in threaded connection with the outer side of the screw rod (14).
4. An underwater cutting device for old bridge pile foundation maintenance according to claim 3, wherein: the top movable mounting of mount pad (5) has fly leaf (16), the top fixed mounting of fly leaf (16) has second motor (17), through output shaft transmission connection between second motor (17) and lead screw (14).
5. An underwater cutting device for old bridge pile foundation maintenance according to claim 1, wherein: mounting groove (9) have been seted up to the arc inboard of arc splint (8), the inner wall and the axis of rotation (10) of mounting groove (9) rotate to be connected, the outside and sprocket (11) fixed connection of axis of rotation (10).
6. An underwater cutting device for old bridge pile foundation maintenance according to claim 1, wherein: one side of the top end of the arc-shaped clamping plate (8) close to the movable seat (7) is fixedly connected with a first motor (13), and the first motor (13) is in transmission connection with one of the rotating shafts (10) through an output shaft.
7. An underwater cutting device for old bridge pile foundation maintenance according to claim 5, wherein: the rotating shafts (10) are arranged in the mounting groove (9) at equal intervals, the inner wall of the mounting groove (9) is movably connected with the saw blade (12), and the saw blade (12) is a high-strength metal material member.
8. An underwater cutting device for old bridge pile foundation maintenance according to claim 1, wherein: the top and the first regulation pole (2) fixed connection of mounting panel (1), one side and pneumatic cylinder (3) fixed connection of mounting panel (1), the equal movable mounting in both sides of pneumatic cylinder (3) has second regulation pole (4).
9. An underwater cutting device for old bridge pile foundation maintenance according to claim 8, wherein: one end, far away from the hydraulic cylinder (3), of the second adjusting rod (4) is fixedly connected with the mounting seat (5), and one side of the mounting seat (5) is movably connected with the mounting plate (1).
10. An underwater cutting device for old bridge pile foundation maintenance according to claim 8, wherein: the second adjusting rod (14) and the first adjusting rod (2) are both arranged to be telescopic structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110575920.6A CN113089670B (en) | 2021-05-26 | 2021-05-26 | Underwater cutting device for maintaining old bridge pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110575920.6A CN113089670B (en) | 2021-05-26 | 2021-05-26 | Underwater cutting device for maintaining old bridge pile foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113089670A true CN113089670A (en) | 2021-07-09 |
| CN113089670B CN113089670B (en) | 2022-10-21 |
Family
ID=76665905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110575920.6A Active CN113089670B (en) | 2021-05-26 | 2021-05-26 | Underwater cutting device for maintaining old bridge pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113089670B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120030187A (en) * | 2010-09-17 | 2012-03-28 | 홍성록 | Cutting device using concrete pile |
| CN105855614A (en) * | 2016-06-06 | 2016-08-17 | 晋正正 | Annular cutting mechanism for steel pipes |
| CN207553100U (en) * | 2017-11-09 | 2018-06-29 | 北京发研工程技术有限公司 | A kind of underwater concrete pile foundation cutting arrangement |
| CN108672815A (en) * | 2018-07-25 | 2018-10-19 | 米向阳 | A kind of knife saw for cutting pipeline |
| CN110712733A (en) * | 2019-05-01 | 2020-01-21 | 上海交大海科检测技术有限公司 | Underwater operation device and method for marine pipeline |
| CN110863491A (en) * | 2019-11-05 | 2020-03-06 | 哈尔滨工程大学 | Device and method for blowing mud of abandoned submarine pile pipe downwards and cutting mud |
-
2021
- 2021-05-26 CN CN202110575920.6A patent/CN113089670B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120030187A (en) * | 2010-09-17 | 2012-03-28 | 홍성록 | Cutting device using concrete pile |
| CN105855614A (en) * | 2016-06-06 | 2016-08-17 | 晋正正 | Annular cutting mechanism for steel pipes |
| CN207553100U (en) * | 2017-11-09 | 2018-06-29 | 北京发研工程技术有限公司 | A kind of underwater concrete pile foundation cutting arrangement |
| CN108672815A (en) * | 2018-07-25 | 2018-10-19 | 米向阳 | A kind of knife saw for cutting pipeline |
| CN110712733A (en) * | 2019-05-01 | 2020-01-21 | 上海交大海科检测技术有限公司 | Underwater operation device and method for marine pipeline |
| CN110863491A (en) * | 2019-11-05 | 2020-03-06 | 哈尔滨工程大学 | Device and method for blowing mud of abandoned submarine pile pipe downwards and cutting mud |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113089670B (en) | 2022-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113089670B (en) | Underwater cutting device for maintaining old bridge pile foundation | |
| CN113607544A (en) | Adjustable hardness detection device for building material | |
| CN211448895U (en) | Universal clamp for mounting wind driven generator blade | |
| CN108797580B (en) | Height-adjustable building pile | |
| CN216238543U (en) | Encapsulation formwork device for construction of electric power pipe trench well | |
| CN211006290U (en) | Road cutting machine for civil engineering | |
| CN216445972U (en) | Highway is supplementary perpendicular device of pile foundation for construction | |
| CN210380750U (en) | Foldable photovoltaic module with support | |
| CN211421155U (en) | Pile foundation auxiliary table for civil engineering | |
| CN209053068U (en) | A kind of water conservancy irrigation gate opening/closing equipment | |
| CN112610153A (en) | Adjustable energy storage deburring square hammer | |
| CN103522355B (en) | Automatic cutting device for rod body | |
| CN220684492U (en) | Truck mounted crane mounting platform | |
| CN214091693U (en) | Adjustable energy storage deburring square hammer | |
| CN221389473U (en) | Automatic change welding equipment | |
| CN212241250U (en) | Sliding cutting device for machining sealing gasket | |
| CN216156325U (en) | Adjustable joint cutting device for road and bridge construction | |
| CN110839503A (en) | Tree transplanting equipment | |
| CN216914160U (en) | Band saw machine convenient to location | |
| CN221530831U (en) | Cable fixing device | |
| CN216663997U (en) | Hydraulic engineering is with emergent manger plate dam that has quick installation function | |
| CN215116344U (en) | A anemorumbometer for bridge monitoring | |
| CN218596939U (en) | Pier stud template | |
| CN219653480U (en) | Pile embracing device | |
| CN212169172U (en) | Steel pipe cutting equipment for building engineering |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230621 Address after: Block a, Tiejian building, 2666 Aoti West Road, Lixia District, Jinan City, Shandong Province Patentee after: CHINA RAILWAY SHISIJU Group Corp. Patentee after: China Railway 14th Bureau Group (Qingdao) EMU Town Changde Construction Co.,Ltd. Patentee after: SHANDONG JIAOTONG University Address before: 250023 No. 5 Jiao Tong Road, Tianqiao District, Shandong, Ji'nan Patentee before: SHANDONG JIAOTONG University |