CN116240821B - Bridge crack repairing device and using method thereof - Google Patents
Bridge crack repairing device and using method thereof Download PDFInfo
- Publication number
- CN116240821B CN116240821B CN202310006758.5A CN202310006758A CN116240821B CN 116240821 B CN116240821 B CN 116240821B CN 202310006758 A CN202310006758 A CN 202310006758A CN 116240821 B CN116240821 B CN 116240821B
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- bevel gear
- asphalt
- gear
- crack
- output pipe
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0966—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge crack repairing device, which comprises: a cross plate; the left end and the right end of the bottom of the transverse plate are fixedly provided with vertical plates, and the bottom of the vertical plates is connected with a plurality of balls in a rolling way; the asphalt storage box is fixedly arranged at the top of the transverse plate; and the bottom of the transverse plate is provided with a plurality of asphalt output mechanisms. The invention can be realized by only pushing the device to move on the bridge deck, asphalt is not output when no crack exists, asphalt is automatically conveyed into the crack to fill the crack when the crack is encountered, the operation is convenient, and the degree of automation is high.
Description
Technical Field
The invention relates to the field of repairing devices, in particular to a bridge crack repairing device and a using method thereof.
Background
Railroad bridges are structures where a railway crosses a river, lake, strait, valley or other obstacle, and is constructed to achieve a three-dimensional intersection of a railroad line with a railroad line or road. The railway bridge is large in load, large in impact force and large in driving density, so that after long-term use, a bridge deck is easy to crack and needs to be repaired, and a current common repairing method is to grouting into the crack through a grouting device, for example, patent publication No. CN212357924U discloses a bridge crack repairing grouting tool, and particularly discloses that' the sealing piston is gradually close to a magnetic block when the elastic force of a spring close to the bottom is smaller, the distance between the iron block and the magnetic block is smaller, and the magnetic force attracted to each other is larger. Therefore, the magnetic force between the magnetic block and the iron block is supplemented, so that enough force is applied to enable the sealing piston to continue to move downwards further, and grouting is further carried out. And the anti-adhesion boss is arranged on the inner side of the bottom surface of the grouting barrel, so that the contact between the sealing piston and the bottom surface of the grouting barrel can be avoided, and the contact bonding between the sealing piston and the bottom surface of the grouting barrel caused by slurry solidification can be avoided. After the grouting resin in the grouting device is used up, the grouting resin is filled in the grouting device through the grouting channel more conveniently, and the grouting device is not removed from the filling nozzle any more. However, the existing repairing device is complicated to use, needs grouting repairing one crack by one crack, is large in workload and complex in operation, and needs improvement.
Disclosure of Invention
The invention aims to provide a bridge crack repairing device and a using method thereof, so as to solve the technical problems.
The invention aims to solve the technical problems, and is realized by adopting the following technical scheme:
a bridge crack repair device comprising: a cross plate; the left end and the right end of the bottom of the transverse plate are fixedly provided with vertical plates, and the bottom of the vertical plates is connected with a plurality of balls in a rolling way; the asphalt storage box is fixedly arranged at the top of the transverse plate; and the bottom of the transverse plate is provided with a plurality of asphalt output mechanisms.
Preferably, the method further comprises: the asphalt input pipe penetrates through the top of the asphalt storage box and is fixedly arranged on the top of the asphalt storage box; the top of the asphalt storage box is connected with the lower end of the grip through a hinge.
Preferably, the asphalt output mechanism includes: the transverse plate is provided with a plurality of through holes; the upper output pipe is fixedly connected with the bottom of the transverse plate and is communicated with the through hole; the lower output pipe is connected in the upper output pipe in a sliding way; the limiting disc is fixedly sleeved at the bottom of the upper output pipe; the first spring is sleeved on the lower output pipe, the upper end of the first spring is fixedly connected with the limiting disc, and the lower end of the first spring is fixedly connected with the lower output pipe.
Preferably, the asphalt output mechanism further comprises: the lower output pipe is internally provided with a driving rod; auger blades are fixedly wound on the driving rod; the upper end of the driving rod is sleeved with a plurality of bearings, the inner ring of the bearings is fixedly connected with the driving rod, and the outer ring of the bearings is fixedly connected with the inner wall of the upper output pipe through a bracket.
Preferably, the asphalt output mechanism further comprises: the first bevel gear is fixedly sleeved at the bottom of the driving rod and is positioned below the auger blade; the left side and the right side of the first bevel gear are provided with second bevel gears, and the first bevel gear is meshed with the second bevel gears; the second bevel gear is fixedly sleeved on the rotating shaft; the second bearing is sleeved on the rotating shaft, the inner ring of the second bearing is fixedly connected with the rotating shaft, and the second bearing is fixedly arranged on the lower output pipe in a penetrating manner; the first gear is fixedly sleeved on the rotating shaft and is positioned at the outer side of the lower output pipe; the second gear is positioned below the first gear, is meshed with the first gear, is fixedly sleeved on a second rotating shaft, and is rotationally connected with the lower output pipe; the roller is positioned below the second gear, the roller is fixedly sleeved on a third rotating shaft, and the third rotating shaft is in rotating connection with the lower output pipe; the gear teeth are formed in the roller along the circumferential direction of the roller, a plurality of gear teeth are fixedly arranged in the groove along the circumferential direction of the roller, and the second gear is meshed with the gear teeth.
Preferably, the asphalt output mechanism further comprises: the third bevel gear is sleeved on the driving rod; the left side and the right side of the driving rod are fixedly provided with sliding rails, the left side and the right side of the inside of the third bevel gear are provided with sliding grooves, and the sliding rails are in sliding connection with the sliding grooves; the second spring is sleeved at the bottom of the driving rod, the upper end of the second spring is fixedly connected with the third bevel gear, and the lower end of the second spring is fixedly connected with the driving rod.
Preferably, the device further comprises a strickling mechanism, the strickling mechanism comprises: the top of the scraping plate is connected with the rear side of the vertical plate through a second hinge; the balancing weight is fixedly connected with the scraping plate.
The beneficial effects of the invention are as follows:
through promoting this device along the crack on the bridge floor, when pitch output mechanism did not contact with the crack, the gyro wheel rolls on the bridge floor, gyro wheel drive second bevel gear rotates, because second bevel gear and first bevel gear meshing this moment, auger blade forward rotation drive pitch moves up, pitch can't drop to the bridge floor through the downtake pipe this moment, and when pitch output mechanism moved to the crack top, in the downtake pipe moved down into the crack under first spring effect, second bevel gear and third bevel gear meshing this moment, auger blade reverse rotation drive pitch moves down, pitch can fall into the crack through downtake pipe this moment. The invention can be realized by only pushing the device to move on the bridge deck, asphalt is not output when no crack exists, asphalt is automatically conveyed into the crack to fill the crack when the crack is encountered, the operation is convenient, and the degree of automation is high.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic diagram of the pitch output mechanism of the present invention;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
FIG. 5 is an enlarged schematic view of portion B of FIG. 3;
FIG. 6 is an enlarged schematic view of portion C of FIG. 3;
reference numerals: 1. a grip; 2. an asphalt input pipe; 3. an asphalt storage tank; 4. a cross plate; 5. a vertical plate; 6. a ball; 7. a through hole; 8. a hinge; 9. a scraper; 10. balancing weight; 11. an upper output pipe; 12. a driving rod; 13. auger blades; 14. a first spring; 15. a lower output pipe; 16. a bracket; 17. a bearing; 18. a limiting disc; 19. a third bevel gear; 20. a slide rail; 21. a second spring; 22. a third rotating shaft; 23. gear teeth; 24. a roller; 25. a second rotating shaft; 26. a second gear; 27. a second bevel gear; 28. a rotating shaft; 29. a second bearing; 30. a first gear; 31. a first bevel gear; 32. and a sliding groove.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present invention are obtained, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 6, a bridge crack repairing apparatus includes: a cross plate 4; the vertical plate 5 is fixedly arranged at the left end and the right end of the bottom of the transverse plate 4, and a plurality of balls 6 are connected with the bottom of the vertical plate 5 in a rolling way; the asphalt storage box 3 is fixedly arranged at the top of the transverse plate 4; the asphalt output mechanisms are arranged at the bottoms of the transverse plates 4; the asphalt input pipe 2 is fixedly arranged at the top of the asphalt storage box 3 in a penetrating way; the top of the asphalt storage box 3 is connected with the lower end of the handle 1 through a hinge 8.
The pitch output mechanism includes: the transverse plate 4 is provided with a plurality of through holes 7; the upper output pipe 11 is fixedly connected with the bottom of the transverse plate 4, and the upper output pipe 11 is communicated with the through hole 7; the lower output pipe 15, the lower output pipe 15 is connected in the upper output pipe 11 in a sliding way; the limiting disc 18 is fixedly sleeved at the bottom of the upper output pipe 11; the first spring 14 is sleeved on the lower output pipe 15, the upper end of the first spring 14 is fixedly connected with the limiting disc 18, and the lower end of the first spring 14 is fixedly connected with the lower output pipe 15; the driving rod 12, the lower output pipe 15 is internally provided with the driving rod 12; auger blade 13, auger blade 13 is fixedly wound on driving rod 12; the upper end of the driving rod 12 is sleeved with a plurality of bearings 17, the inner ring of the bearings 17 is fixedly connected with the driving rod 12, and the outer ring of the bearings 17 is fixedly connected with the inner wall of the upper output pipe 11 through a bracket 16; the first bevel gear 31 is fixedly sleeved at the bottom of the driving rod 12, and the first bevel gear 31 is positioned below the auger blade 13; a second bevel gear 27, wherein the second bevel gear 27 is arranged on the left side and the right side of the first bevel gear 31, and the first bevel gear 31 is meshed with the second bevel gear 27; the rotating shaft 28, the second bevel gear 27 is fixedly sleeved on the rotating shaft 28; the second bearing 29 is sleeved on the rotating shaft 28, the inner ring of the second bearing 29 is fixedly connected with the rotating shaft 28, and the second bearing 29 is fixedly arranged on the lower output pipe 15 in a penetrating manner; the first gear 30 is fixedly sleeved on the rotating shaft 28, and the first gear 30 is positioned outside the lower output pipe 15; the second gear 26, the second gear 26 locates under the first gear 30, the second gear 26 is meshed with first gear 30, the second gear 26 is fixedly set up on the second spindle 25, the second spindle 25 is connected with lower output tube 15 rotation; the roller 24, the roller 24 locates under the second gear 26, the roller 24 is fixedly sleeved on the third spindle 22, the third spindle 22 is connected with the lower output tube 15 in a rotating way; the gear teeth 23, the roller 24 is provided with a groove along the circumferential direction of the roller 24, a plurality of gear teeth 23 are fixedly arranged in the groove along the circumferential direction of the roller 24, and the second gear 26 is meshed with the gear teeth 23; the third bevel gear 19, the third bevel gear 19 is set up on the driving rod 12; the sliding rail 20 is fixedly arranged on the left side and the right side of the driving rod 12, the sliding grooves 32 are formed on the left side and the right side of the inside of the third bevel gear 19, and the sliding rail 20 is in sliding connection with the sliding grooves 32; the second spring 21, the second spring 21 cover is established in the actuating lever 12 bottom, and second spring 21 upper end and third bevel gear 19 rigid coupling, second spring 21 lower extreme and actuating lever 12 rigid coupling.
Working principle: placing the device on the bridge floor, enabling the balls 6 to be in contact with the bridge floor, holding the handle 1 to push the device, enabling the device to move on the bridge floor, enabling the roller 24 to roll on the bridge floor at the moment, enabling the roller 24 to drive the second gear 26 to rotate through the gear teeth 23, enabling the second gear 26 to drive the first gear 30 to rotate, enabling the first gear 30 to drive the second bevel gear 27 to rotate through the rotating shaft 28, enabling the second bevel gear 27 to be meshed with the first bevel gear 31 at the moment, enabling the second bevel gear 27 to drive the first bevel gear 31 to rotate, enabling the first bevel gear 31 to drive the auger blade 13 to rotate positively through the driving rod 12, enabling asphalt in the lower output pipe 15 to move upwards through the driving rod 13, and enabling asphalt in the asphalt storage tank 3 to fall onto the bridge floor through the through hole 7, the upper output pipe 11 and the lower output pipe 15.
When a crack is seen on the bridge deck, the device is pushed to move towards the crack, the device covers the crack and moves along the crack, at the moment, the lower output pipe 15 is driven to move downwards by the first spring 14, the roller 24 stretches into the crack to be in contact with the bottom of the crack, at the moment, the second bevel gear 27 moves downwards synchronously with the lower output pipe 15, the second bevel gear 27 is meshed with the third bevel gear 19, at the moment, the roller 24 rolls, the third bevel gear 19 is driven to rotate, the third bevel gear 19 drives the auger blade 13 to rotate reversely through the driving rod 12, at the moment, the auger blade 13 drives asphalt in the lower output pipe 15 to move downwards, and at the moment, the asphalt in the asphalt storage tank 3 can drop into the crack through the through hole 7, the upper output pipe 11 and the lower output pipe 15 to fill the crack.
Example 2
As shown in fig. 1 to 6, in the case where the other portions are the same as in embodiment 1, this embodiment differs from embodiment 1 in that: still include strickle mechanism, strickle mechanism includes: the top of the scraping plate 9 is connected with the rear side of the vertical plate 5 through a second hinge; the balancing weight 10, the balancing weight 10 is fixedly connected with the scraping plate 9. By arranging the scraping plate 9, asphalt higher than the bridge deck in the crack can be scraped off by the scraping plate 9, so that the asphalt filled in the crack is kept level with the pavement.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a bridge crack patching device which characterized in that: comprising the following steps:
a cross plate (4);
the left end and the right end of the bottom of the transverse plate (4) are fixedly provided with the vertical plate (5), and the bottom of the vertical plate (5) is connected with a plurality of balls (6) in a rolling way;
the asphalt storage box (3), the asphalt storage box (3) is fixedly arranged at the top of the transverse plate (4);
the asphalt output mechanisms are arranged at the bottoms of the transverse plates (4);
the asphalt storage box comprises an asphalt input pipe (2), wherein the asphalt input pipe (2) is fixedly arranged at the top of the asphalt storage box (3) in a penetrating way;
the top of the asphalt storage box (3) is connected with the lower end of the grip (1) through a hinge (8);
the asphalt output mechanism comprises:
the transverse plate (4) is provided with a plurality of through holes (7);
the upper output pipe (11) is fixedly connected with the bottom of the transverse plate (4), and the upper output pipe (11) is communicated with the through hole (7);
a lower output pipe (15), wherein the lower output pipe (15) is slidably connected in the upper output pipe (11);
the limiting disc (18) is fixedly sleeved at the bottom of the upper output tube (11);
the first spring (14) is sleeved on the lower output pipe (15), the upper end of the first spring (14) is fixedly connected with the limiting disc (18), and the lower end of the first spring (14) is fixedly connected with the lower output pipe (15);
the asphalt output mechanism further comprises:
a driving rod (12), wherein the lower output pipe (15) is internally provided with the driving rod (12);
the auger blade (13) is fixedly wound on the driving rod (12);
the upper end of the driving rod (12) is sleeved with a plurality of bearings (17), the inner ring of the bearings (17) is fixedly connected with the driving rod (12), and the outer ring of the bearings (17) is fixedly connected with the inner wall of the upper output pipe (11) through a bracket (16);
the asphalt output mechanism further comprises:
the first bevel gear (31) is fixedly sleeved at the bottom of the driving rod (12), and the first bevel gear (31) is positioned below the auger blade (13);
a second bevel gear (27), wherein the second bevel gear (27) is arranged on the left side and the right side of the first bevel gear (31), and the first bevel gear (31) is meshed with the second bevel gear (27);
the second bevel gear (27) is fixedly sleeved on the rotating shaft (28);
the second bearing (29) is sleeved on the rotating shaft (28), the inner ring of the second bearing (29) is fixedly connected with the rotating shaft (28), and the second bearing (29) is fixedly arranged on the lower output pipe (15) in a penetrating manner;
the first gear (30) is fixedly sleeved on the rotating shaft (28), and the first gear (30) is positioned at the outer side of the lower output pipe (15);
the second gear (26) is positioned below the first gear (30), the second gear (26) is meshed with the first gear (30), the second gear (26) is fixedly sleeved on the second rotating shaft (25), and the second rotating shaft (25) is rotationally connected with the lower output pipe (15);
the roller (24) is positioned below the second gear (26), the roller (24) is fixedly sleeved on a third rotating shaft (22), and the third rotating shaft (22) is rotationally connected with the lower output pipe (15);
the gear teeth (23), the roller (24) is provided with grooves along the circumferential direction of the roller (24), a plurality of gear teeth (23) are fixedly arranged in the grooves along the circumferential direction of the roller (24), and the second gear (26) is meshed with the gear teeth (23).
2. The bridge crack repair device of claim 1, wherein: the asphalt output mechanism further comprises:
the third bevel gear (19) is sleeved on the driving rod (12);
the sliding rail (20) is fixedly arranged on the left side and the right side of the driving rod (12), sliding grooves (32) are formed in the left side and the right side of the inside of the third bevel gear (19), and the sliding rail (20) is in sliding connection with the sliding grooves (32);
the second spring (21), second spring (21) cover is established in actuating lever (12) bottom, second spring (21) upper end and third bevel gear (19) rigid coupling, second spring (21) lower extreme and actuating lever (12) rigid coupling.
3. The bridge crack repair device of claim 2, wherein: still include strickle mechanism, strickle mechanism includes:
the top of the scraping plate (9) is connected with the rear side of the vertical plate (5) through a second hinge;
the balancing weight (10), balancing weight (10) and scraper blade (9) rigid coupling.
4. The method for using a bridge crack repairing device according to claim 3, wherein: comprising the following steps:
holding the handle (1) to push the device to move on the bridge floor, wherein the roller (24) rolls on the bridge floor, the roller (24) drives the second bevel gear (27) to rotate, the second bevel gear (27) drives the first bevel gear (31) to rotate, the first bevel gear (31) drives the auger blade (13) to rotate positively, the auger blade (13) drives asphalt in the lower output pipe (15) to move upwards, and the asphalt in the asphalt storage box (3) cannot fall onto the bridge floor;
when seeing that there is the crack on the bridge floor, promote this device to crack department removal to make this device cover crack and remove along the crack, first spring (14) drive down output tube (15) move down this moment, make gyro wheel (24) stretch into in the crack and contact with crack bottom, second bevel gear (27) and third bevel gear (19) mesh this moment, when gyro wheel (24) roll this moment, drive third bevel gear (19) rotate, third bevel gear (19) drive auger blade (13) through actuating lever (12) reverse rotation, the asphalt in auger blade (13) drive down output tube (15) moves this moment, asphalt in asphalt bin (3) can drop to crack intussuseption and fill the crack this moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310006758.5A CN116240821B (en) | 2023-01-04 | 2023-01-04 | Bridge crack repairing device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310006758.5A CN116240821B (en) | 2023-01-04 | 2023-01-04 | Bridge crack repairing device and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116240821A CN116240821A (en) | 2023-06-09 |
| CN116240821B true CN116240821B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310006758.5A Active CN116240821B (en) | 2023-01-04 | 2023-01-04 | Bridge crack repairing device and using method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN116240821B (en) |
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| CN212716032U (en) * | 2020-07-16 | 2021-03-16 | 湖南艺术职业学院(湖南省艺术学校) | Novel injector is restoreed in concrete crack grout |
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| CN212895727U (en) * | 2020-06-29 | 2021-04-06 | 大连交通大学 | Railway track slab crack repairing device |
| CN112921831A (en) * | 2021-01-14 | 2021-06-08 | 薛章奎 | Bridge crack repairing method |
| CN215210378U (en) * | 2020-12-22 | 2021-12-17 | 张兴振 | Road surface grouting pouring device for building construction |
| CN215252198U (en) * | 2021-03-30 | 2021-12-21 | 河南力大建设有限公司 | Building construction road bridge crack filling device |
| CN114855576A (en) * | 2022-04-02 | 2022-08-05 | 刘牧野 | Pit and groove pavement asphalt paving system |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020074664A (en) * | 2001-03-21 | 2002-10-04 | 김천만 | Injector for grouting of concrete structure and construction method using it |
| CN111058651A (en) * | 2019-12-31 | 2020-04-24 | 合肥连森裕腾新材料科技开发有限公司 | Cement caulking gun for building |
| CN111321651A (en) * | 2020-01-06 | 2020-06-23 | 上海驰骋道路建设发展有限公司 | Pitch sprinkler is used in road maintenance |
| CN212153151U (en) * | 2020-05-12 | 2020-12-15 | 东希云 | Road and bridge crack filling and reinforcing mechanism |
| CN212743480U (en) * | 2020-06-08 | 2021-03-19 | 福建德超建设工程有限公司 | Prevent extravagant building wall patching device of gap filler |
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| CN112482175A (en) * | 2020-11-26 | 2021-03-12 | 南京珊秀科技有限公司 | Concrete road surface local filling pouring repair processing system |
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| CN215252198U (en) * | 2021-03-30 | 2021-12-21 | 河南力大建设有限公司 | Building construction road bridge crack filling device |
| CN114855576A (en) * | 2022-04-02 | 2022-08-05 | 刘牧野 | Pit and groove pavement asphalt paving system |
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| Publication number | Publication date |
|---|---|
| CN116240821A (en) | 2023-06-09 |
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