CN114635337B - Quick prosthetic devices of concrete road surface - Google Patents
Quick prosthetic devices of concrete road surface Download PDFInfo
- Publication number
- CN114635337B CN114635337B CN202210318015.7A CN202210318015A CN114635337B CN 114635337 B CN114635337 B CN 114635337B CN 202210318015 A CN202210318015 A CN 202210318015A CN 114635337 B CN114635337 B CN 114635337B
- Authority
- CN
- China
- Prior art keywords
- trowelling
- slurry
- guide rail
- guide
- concrete pavement
- 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
- 239000002002 slurry Substances 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000007790 scraping Methods 0.000 claims abstract description 22
- 241000272814 Anser sp. Species 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000008439 repair process Effects 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 239000003973 paint Substances 0.000 abstract description 3
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The application discloses a concrete pavement quick repairing device, which comprises a moving platform, wherein the moving platform is provided with a slurry layout mechanism; the mobile platform is provided with a height adjusting mechanism, the mobile platform is provided with a guide rail, the slurry laying mechanism is provided with a corresponding guide rail wheel, and the slurry laying mechanism is provided with a trowelling structure. The trowelling structure comprises a slurry distribution scraper, and a plurality of trowelling strips are arranged behind the slurry distribution scraper. The middle section of the slurry distributing scraper plate protrudes forwards to form a wild goose shape, and the left section and the right section are provided with zigzag folds; the trowelling strip comprises a scraping strip, the middle section of the scraping strip protrudes forwards to form a goose-shaped shape, and the bottom of the scraping strip is connected with a backward horizontal folding edge. The beneficial effect of this scheme can learn according to the description to above-mentioned scheme, simple structure, reasonable in design to the road surface that has crack or skinning, can evenly paint repairing agent thick liquids and trowelling to can accomplish the restoration to concrete road surface fast, because throw the material trowelling all automatic completion moreover, not only saved the manual work, improved efficiency moreover.
Description
Technical Field
The invention relates to the field of asphalt pavement maintenance, in particular to a concrete pavement rapid repairing device.
Background
The concrete pavement is high in occurrence rate, defects and the like, the problem of surface layer diseases of the concrete pavement is relatively common, the diseases generated by the concrete pavement need to be repaired timely, and the existing method is to pave and scrape the uniformly stirred concrete pavement repair slurry at the positions of the diseases, so that at present, the stirring, paving and scraping of the concrete pavement repair slurry are manually carried out, and the inventor finds that the mode is high in labor intensity, long in time and low in working efficiency, and the stirring uniformity of the concrete pavement repair slurry is poor, the repair slurry is not uniform in pavement, so that the repair effect on the concrete pavement diseases is poor, and the pavement of the concrete pavement repair slurry needs to be completed within a set time, so that the skill level requirement on repair personnel is high, and the labor cost is increased.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the quick repairing device for the concrete pavement, which has the advantages of simple structure and reasonable design, and can uniformly paint repairing agent slurry and smear for the pavement with cracks or peels, so that the repairing of the concrete pavement can be quickly completed, and the feeding troweling is automatically completed, thereby saving labor and improving efficiency.
In order to achieve the above purpose, the invention provides a concrete pavement quick repairing device, which comprises a moving platform, wherein the moving platform is provided with a slurry distribution mechanism;
the movable platform is provided with a height adjusting mechanism, the movable platform is provided with a guide rail, the slurry laying mechanism is provided with a corresponding guide rail wheel, and the slurry laying mechanism is provided with a trowelling structure.
The two ends of the guide rail are provided with first cross beams to form a first rectangular frame;
A longitudinal beam is arranged above the guide rail, a second transverse beam is arranged above the first transverse beam, and the longitudinal beam and the second transverse beam form a second rectangular frame;
A first upright post is arranged between the first cross beam and the second cross beam, and a second upright post is connected with the outer sides of the guide rails and the longitudinal beams, so that a cuboid frame is formed together with the first rectangular frame and the second giant frame.
The height adjusting mechanism comprises a third upright post arranged outside the guide rail and the longitudinal beam, the third upright post is provided with a guide seat, the guide seat is connected with a guide post in a sliding manner, the lower end of the guide post is provided with a wheel seat, and the wheel seat is movably connected with a roller;
the guide holder threaded connection has the threaded rod, the threaded rod lower extreme contact the wheel seat, the threaded rod is provided with the hand wheel.
The slurry distribution mechanism further comprises a charging barrel, and a discharge valve is arranged at the bottom of the charging barrel;
the feed cylinder is provided with rabbling mechanism, rabbling mechanism is including being provided with the grudging post at feed cylinder top, the grudging post middle section is provided with first motor, first motor drive is connected with the reduction gear, reduction gear lower extreme transmission is connected with first pivot, first pivot lower extreme is connected with the radial arm, the radial arm is provided with a plurality of second motors, second motor lower extreme transmission is connected with the puddler.
The stirring rod is provided with a spiral groove.
The middle section of the vertical frame is sunken downwards.
The guide rail wheel is connected with a supporting plate, and the supporting plate is connected with the charging barrel;
The support plate is further provided with a third motor, and the third motor is in transmission connection with the guide rail wheel.
The trowelling structure is arranged on the lower side of the supporting plate;
the trowelling structure is located the rear of feed cylinder, trowelling structure includes the link, the link lower extreme is provided with thick liquids distribution scraper blade, thick liquids distribution scraper blade rear is provided with a plurality of trowelling bars.
The middle section of the slurry distribution scraping plate protrudes forwards to form a wild goose shape, and the left section and the right section are provided with zigzag folds;
The trowelling strip comprises a scraping strip, the middle section of the scraping strip protrudes forwards to form a wild goose shape, and the bottom of the scraping strip is connected with a backward horizontal folded edge;
the trowelling bar height is less than the slurry dispensing screed;
the further the trowelling bar is from the slurry dispensing screed, the smaller the height.
The slurry distribution scraping plate is connected with the top of the trowelling bar through a transverse bar, a fourth upright post is arranged on the upper side of the transverse bar, and the fourth upright post is connected with the supporting plate.
When the trowelling platform is used, the movable platform is arranged at a set place, and the four rollers are adjusted so that the trowelling structure is proper in height. Typically, the slurry placement mechanism is located at the rear end of the rail. And placing the materials into a charging barrel, and starting the first motor and the second motor to start stirring. Since the material may contain stone and cement components, blade type stirring may be less reliable because the stirring rod is a vertical rod provided with spiral grooves. And because the stirring rod is too thin, the stirring rod can rotate around the axis of the material cylinder, so that the stirring efficiency can be improved.
Stirring to a proper state, opening a discharge valve, starting a third motor, and enabling the guide rail wheel to move to the front of the guide rail, so that the discharge is performed while trowelling.
The wild goose shape of the slurry distribution scraping plate is beneficial to the diffusion of the slurry to two sides; meanwhile, as the slurry distribution scraping plate is provided with the zigzag folds, the phenomenon that the middle section is not paved enough due to the fact that the slurry slides to two sides is prevented.
The wild goose shape is smooth relative sliding state for trowelling, so that the crease caused by trowelling pressing is avoided.
The later the trowelling bar height is smaller, thereby gradually compacting the slurry.
The beneficial effect of this scheme can learn according to the description to above-mentioned scheme, simple structure, reasonable in design to the road surface that has crack or skinning, can evenly paint repairing agent thick liquids and trowelling to can accomplish the restoration to concrete road surface fast, because throw the material trowelling all automatic completion moreover, not only saved the manual work, improved efficiency moreover.
Drawings
FIG. 1 is a schematic diagram of the mechanism of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
FIG. 3 is a top view of the slurry dispensing mechanism of the present invention.
Fig. 4 is a schematic structural view of the trowelling structure of the present invention.
Fig. 5 is a top view of fig. 4.
FIG. 6 is a schematic view of the structure of the troweling strip of the present invention.
In the figure, 1, a mobile platform; 2. a slurry laying mechanism; 3. a height adjusting mechanism; 4. a guide rail; 5. a guide rail wheel; 6. a trowelling structure; 7. a first cross beam; 8. a longitudinal beam; 9. a second cross beam; 10. a first upright; 11. a second upright; 12. a third upright; 13. a guide seat; 14. a guide post; 15. a wheel seat; 16. a roller; 17. a threaded rod; 18. a hand wheel; 19. a charging barrel; 20. a discharge valve; 21. a stirring mechanism; 22. a vertical frame; 23. a first motor; 24. a speed reducer; 25. a first rotating shaft; 26. a radial arm; 27. a second motor; 28. a stirring rod; 29. a support plate; 30. a third motor; 31. a slurry dispensing blade; 32. smearing a flat strip; 33. scraping the strip; 34. folding edges; 35. a cross bar; 36. and a fourth upright post.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
As shown in fig. 1-4, the embodiment is a concrete pavement quick repairing device, which comprises a mobile platform 1, wherein the mobile platform 1 is provided with a slurry distributing mechanism 2;
the mobile platform 1 is provided with a height adjusting mechanism 3, the mobile platform 1 is provided with a guide rail 4, the slurry laying mechanism 2 is provided with a corresponding guide rail wheel 5, and the slurry laying mechanism 2 is provided with a trowelling structure 6.
Wherein, the two ends of the guide rail 4 are provided with first cross beams 7 to form a first rectangular frame;
A longitudinal beam 8 is arranged above the guide rail 4, a second transverse beam 9 is arranged above the first transverse beam 7, and the longitudinal beam 8 and the second transverse beam 9 form a second rectangular frame;
A first upright post 10 is arranged between the first cross beam 7 and the second cross beam 9, and a second upright post 11 is connected with the outer sides of the guide rail 4 and the longitudinal beam 8, so that a cuboid frame is formed together with the first rectangular frame and the second giant frame.
The height adjusting mechanism 3 comprises a third upright post 12 arranged outside the guide rail 4 and the longitudinal beam 8, the third upright post 12 is provided with a guide seat 13, the guide seat 13 is connected with a guide post 14 in a sliding manner, the lower end of the guide post 14 is provided with a wheel seat 15, and the wheel seat 15 is movably connected with a roller 16;
The guide holder 13 is connected with a threaded rod 17 in a threaded manner, the lower end of the threaded rod 17 is connected with the wheel holder 15, and the threaded rod 17 is provided with a hand wheel 18.
The slurry distribution mechanism 2 further comprises a charging barrel 19, and a discharge valve 20 is arranged at the bottom of the charging barrel 19;
the feed cylinder 19 is provided with rabbling mechanism 21, and rabbling mechanism 21 is including being provided with the grudging post 22 at feed cylinder 19 top, and the grudging post 22 middle section is provided with first motor 23, and first motor 23 transmission is connected with reduction gear 24, and reduction gear 24 lower extreme transmission is connected with first pivot 25, and first pivot 25 lower extreme is connected with radial arm 26, and radial arm 26 is provided with six second motors 27, and second motor 27 lower extreme transmission is connected with puddler 28.
The stirring bar 28 is provided with a helical groove.
The middle section of the stand 22 is recessed downward.
The guide rail wheel 5 is connected with a supporting plate 29, and the supporting plate 29 is connected with a charging barrel 19;
The support plate 29 is further provided with a third motor 30, the third motor 30 being in driving connection with the guide rail wheel 5.
The lower side of the supporting plate 29 is provided with a trowelling structure 6;
the trowelling structure 6 is located the rear of feed cylinder 19, and trowelling structure 6 includes the link, and the link lower extreme is provided with thick liquids distribution scraper blade 31, and thick liquids distribution scraper blade 31 rear is provided with a plurality of trowelling bars 32.
The middle section of the slurry distributing scraper 31 protrudes forwards to be in a wild goose shape, and the left section and the right section are provided with zigzag folds;
The troweling strip 32 comprises a scraping strip 33, the middle section of the scraping strip 33 protrudes forwards to form a wild goose shape, and the bottom of the scraping strip 33 is connected with a backward horizontal folded edge 34;
The height of the troweling strip 32 is smaller than that of the slurry distributing scraper 31;
The farther the screed bar 32 is from the slurry distribution blade 31, the smaller the height.
The slurry distributing scraper 31 and the top of the trowelling bar 32 are connected with a cross bar 35, a fourth upright post 36 is arranged on the upper side of the cross bar 35, and the fourth upright post 36 is connected with the supporting plate 29.
When the trowelling platform is used, the movable platform is arranged at a set place, and the four rollers are adjusted so that the trowelling structure is proper in height. Typically, the slurry placement mechanism is located at the rear end of the rail. And placing the materials into a charging barrel, and starting the first motor and the second motor to start stirring. Since the material may contain stone and cement components, blade type stirring may be less reliable because the stirring rod is a vertical rod provided with spiral grooves. And because the stirring rod is too thin, the stirring rod can rotate around the axis of the material cylinder, so that the stirring efficiency can be improved.
Stirring to a proper state, opening a discharge valve, starting a third motor, and enabling the guide rail wheel to move to the front of the guide rail, so that the discharge is performed while trowelling.
The wild goose shape of the slurry distribution scraping plate is beneficial to the diffusion of the slurry to two sides; meanwhile, as the slurry distribution scraping plate is provided with the zigzag folds, the phenomenon that the middle section is not paved enough due to the fact that the slurry slides to two sides is prevented.
The wild goose shape is smooth relative sliding state for trowelling, so that the crease caused by trowelling pressing is avoided.
The later the trowelling bar height is smaller, thereby gradually compacting the slurry.
The technical features of the present invention that are not described in the present invention can be realized by or are realized by the prior art, and the description is not limited to the above-mentioned embodiments, and the present invention is not limited to the above-mentioned embodiments, and the changes, modifications, additions or substitutions made by those skilled in the art within the spirit and scope of the present invention shall fall within the protection scope of the present invention.
Claims (6)
1. The rapid concrete pavement repairing device is characterized by comprising a moving platform, wherein the moving platform is provided with a slurry distributing mechanism;
the movable platform is provided with a height adjusting mechanism, the movable platform is provided with a guide rail, the slurry laying mechanism is provided with a corresponding guide rail wheel, and the slurry laying mechanism is provided with a trowelling structure;
the slurry distribution mechanism further comprises a charging barrel, and a discharge valve is arranged at the bottom of the charging barrel;
The stirring mechanism comprises a vertical frame arranged at the top of the charging barrel, a first motor is arranged in the middle section of the vertical frame, a speed reducer is connected with the first motor in a transmission mode, a first rotating shaft is connected with the lower end of the speed reducer in a transmission mode, a rotating arm is connected with the lower end of the first rotating shaft, a plurality of second motors are arranged on the rotating arm, and stirring rods are connected with the lower ends of the second motors in a transmission mode;
The guide rail wheel is connected with a supporting plate, and the supporting plate is connected with the charging barrel;
The support plate is also provided with a third motor, and the third motor is in transmission connection with the guide rail wheel;
The trowelling structure is arranged on the lower side of the supporting plate;
the trowelling structure is positioned at the rear of the charging barrel and comprises a connecting frame, a slurry distribution scraper is arranged at the lower end of the connecting frame, and a plurality of trowelling strips are arranged at the rear of the slurry distribution scraper;
The middle section of the slurry distribution scraping plate protrudes forwards to form a wild goose shape, and the left section and the right section are provided with zigzag folds;
The trowelling strip comprises a scraping strip, the middle section of the scraping strip protrudes forwards to form a wild goose shape, and the bottom of the scraping strip is connected with a backward horizontal folded edge;
the trowelling bar height is less than the slurry dispensing screed;
the further the trowelling bar is from the slurry dispensing screed, the smaller the height.
2. The rapid concrete pavement repairing device according to claim 1, wherein first cross beams are arranged at two ends of the guide rail to form a first rectangular frame;
A longitudinal beam is arranged above the guide rail, a second transverse beam is arranged above the first transverse beam, and the longitudinal beam and the second transverse beam form a second rectangular frame;
A first upright post is arranged between the first cross beam and the second cross beam, and a second upright post is connected with the outer sides of the guide rails and the longitudinal beams, so that a cuboid frame is formed together with the first rectangular frame and the second giant frame.
3. The rapid concrete pavement repairing device according to claim 2, wherein the height adjusting mechanism comprises a third upright post arranged outside the guide rail and the longitudinal beam, the third upright post is provided with a guide seat, the guide seat is slidably connected with a guide post, the lower end of the guide post is provided with a wheel seat, and the wheel seat is movably connected with a roller;
the guide holder threaded connection has the threaded rod, the threaded rod lower extreme contact the wheel seat, the threaded rod is provided with the hand wheel.
4. The concrete pavement quick repair device according to claim 1, wherein the stirring rod is provided with a spiral groove.
5. The concrete pavement quick repair device according to claim 1, wherein the middle section of the stand is recessed downward.
6. The concrete pavement quick repair device according to claim 1, wherein the slurry distributing scraping plate and the top of the trowelling bar are connected with a cross bar, a fourth upright post is arranged on the upper side of the cross bar, and the fourth upright post is connected with the supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210318015.7A CN114635337B (en) | 2022-03-29 | 2022-03-29 | Quick prosthetic devices of concrete road surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210318015.7A CN114635337B (en) | 2022-03-29 | 2022-03-29 | Quick prosthetic devices of concrete road surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114635337A CN114635337A (en) | 2022-06-17 |
| CN114635337B true CN114635337B (en) | 2024-07-26 |
Family
ID=81951569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210318015.7A Active CN114635337B (en) | 2022-03-29 | 2022-03-29 | Quick prosthetic devices of concrete road surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114635337B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100007219U (en) * | 2010-06-24 | 2010-07-14 | 배영진 | a scoop of concrete mortar |
| CN210874921U (en) * | 2019-09-10 | 2020-06-30 | 天津滨海新区大港方圆钻采技术服务有限公司 | Vertical double helix conical mixer of production solid lubricant |
| CN212582380U (en) * | 2020-06-08 | 2021-02-23 | 董雪 | Asphalt pavement patching device is used in highway maintenance |
| CN212802688U (en) * | 2020-07-20 | 2021-03-26 | 四川地丰建设工程有限公司 | Concrete defect treatment repair tool |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206897275U (en) * | 2017-05-16 | 2018-01-19 | 贵州大龙建通新材料有限公司 | Planet spreading batch mixer |
| CN212670193U (en) * | 2020-04-01 | 2021-03-09 | 张业忠 | Raw material mixing and storing device for asphalt paving |
| CN214301133U (en) * | 2020-09-08 | 2021-09-28 | 刘铭 | Concrete floating device for road construction |
| CN112359697B (en) * | 2020-12-05 | 2023-01-06 | 江西荣君建设集团有限公司 | Concrete conveyer for concrete pavement restoration |
-
2022
- 2022-03-29 CN CN202210318015.7A patent/CN114635337B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100007219U (en) * | 2010-06-24 | 2010-07-14 | 배영진 | a scoop of concrete mortar |
| CN210874921U (en) * | 2019-09-10 | 2020-06-30 | 天津滨海新区大港方圆钻采技术服务有限公司 | Vertical double helix conical mixer of production solid lubricant |
| CN212582380U (en) * | 2020-06-08 | 2021-02-23 | 董雪 | Asphalt pavement patching device is used in highway maintenance |
| CN212802688U (en) * | 2020-07-20 | 2021-03-26 | 四川地丰建设工程有限公司 | Concrete defect treatment repair tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114635337A (en) | 2022-06-17 |
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