CN115012286A - Highway crack processing apparatus that highway engineering was used - Google Patents
Highway crack processing apparatus that highway engineering was used Download PDFInfo
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- CN115012286A CN115012286A CN202210665006.5A CN202210665006A CN115012286A CN 115012286 A CN115012286 A CN 115012286A CN 202210665006 A CN202210665006 A CN 202210665006A CN 115012286 A CN115012286 A CN 115012286A
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- stirring
- road
- bearing plate
- material spraying
- bin
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- 239000000463 material Substances 0.000 claims abstract description 89
- 238000003756 stirring Methods 0.000 claims abstract description 78
- 238000005507 spraying Methods 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000005485 electric heating Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- E01C23/096—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 forming, opening-out, cleaning, drying or heating and filling
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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
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention provides a highway crack processing device for highway engineering, which comprises a bearing plate, wherein the front end of the bearing plate is provided with a traction connecting piece for connecting with a traction vehicle, and a traveling wheel is arranged below the bearing plate; the front part of the bearing plate is provided with a storage bin which is communicated with the stirring bin through a material conveying mechanism, the stirring bin is internally provided with a stirring mechanism and a heating mechanism, the stirring bin is connected with a material spraying mechanism, the rear part of the bearing plate is connected with a road roller through a hoisting mechanism, and the material conveying mechanism, the stirring mechanism, the heating mechanism, the material spraying mechanism and the hoisting mechanism are all electrically connected with a power mechanism; the materials are stored in the storage bin and can be prepared at any time, the problem that the materials are insufficient or too much due to the fact that the materials are prepared in advance is avoided, the materials are prepared in the stirring bin and repaired through the material spraying mechanism, and finally the materials are leveled through the road roller, so that multiple functions are integrated, and convenience and construction effects of construction are greatly improved.
Description
Technical Field
The invention relates to the field of highway engineering equipment, in particular to a highway crack treatment device for highway engineering.
Background
The method is characterized in that a road is easy to generate cracks under the long-term rolling of vehicles and the influence of external environment, at present, the treatment of general cracks mostly adopts a repairing mode, namely, a repairing material is poured into the cracks to prevent the cracks from being further expanded, and because the quantity of crack repairing work is not large, large-scale paving equipment is not suitable, so that the repairing construction is mostly carried out by manually assisting various small-scale paving equipment and adopting the prepared repairing material; this results in the difficulty of estimating the required amount of repair material required for crack repair, often resulting in problems of insufficient or excessive material, which may affect the efficiency of construction or waste of material, and also in the use of many paving machines, which may take up much space and affect the normal use of roads.
Therefore, a need exists for a road crack processing device for road engineering, which can solve the problem that no proper construction equipment is available for the conventional road crack repair.
Disclosure of Invention
The invention aims to provide a highway crack treatment device for highway engineering, which is used for solving the problem that no proper construction equipment is available for repairing the existing highway cracks.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a highway crack processing device for highway engineering, which comprises a bearing plate, wherein the front end of the bearing plate is provided with a traction connecting piece for connecting with a traction vehicle, and a traveling wheel is arranged below the bearing plate; the front portion of the bearing plate is provided with a storage bin which is communicated with a stirring bin through a material conveying mechanism, a stirring mechanism and a heating mechanism are arranged in the stirring bin, the stirring bin is connected with a material spraying mechanism, the rear portion of the bearing plate is connected with a road roller through a hoisting mechanism, and the material conveying mechanism, the stirring mechanism, the heating mechanism, the material spraying mechanism and the hoisting mechanism are all electrically connected with a power mechanism.
Preferably, the top of storage silo is equipped with the feed inlet, feed inlet department is equipped with the upper cover, the bottom of storage silo is the slope structure, the bottommost of slope structure with defeated material mechanism intercommunication.
Preferably, defeated material mechanism includes a defeated feed cylinder, the one end of defeated feed cylinder with the bottom intercommunication of storage silo, the other end of defeated feed cylinder with the top intercommunication of stirring storehouse, be equipped with the auger in the defeated feed cylinder, the auger is connected with the power take off end transmission of defeated material motor, defeated material motor with power unit electric connection.
Preferably, the stirring mechanism is arranged at the top of the stirring bin, the heating mechanism is arranged at the lower part of the stirring bin, and the material spraying mechanism is arranged at the bottom of the stirring bin.
Preferably, the stirring mechanism includes a stirring shaft, the stirring shaft penetrates through the top of the stirring bin and is in transmission connection with a power output end of a stirring motor, the stirring motor is electrically connected with the power mechanism, and stirring teeth are arranged on the lower portion of the stirring shaft.
Preferably, the heating mechanism comprises a fixed seat, the fixed seat is arranged on the lower portion of the inner side wall of the stirring bin, an electric heating rod is fixed on the fixed seat, and the electric heating rod is electrically connected with the power mechanism.
Preferably, the material spraying mechanism comprises a material spraying pipe, one end of the material spraying pipe is communicated with the bottom of the stirring bin, the other end of the material spraying pipe is communicated with the material spraying gun, a material spraying pump is connected to the middle of the material spraying pipe, and the material spraying pump is electrically connected with the power mechanism.
Preferably, the hoisting mechanism comprises a boom, one end of the boom is hinged to the rear part of the bearing plate, the road roller is rotatably arranged at the other end of the boom, the middle part of the boom is hinged to a piston end of a hydraulic cylinder, a cylinder body end of the hydraulic cylinder is hinged to the bearing plate, the hydraulic cylinder is communicated with an oil pump, and the oil pump is electrically connected with the power mechanism.
Preferably, the power mechanism comprises a diesel generator and a solar panel, the diesel generator and the solar panel are both electrically connected with a distribution box, and the distribution box is used for supplying power.
Preferably, warning lights are arranged around the supporting plate.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a highway crack processing device for highway engineering, which comprises a bearing plate, wherein the front end of the bearing plate is provided with a traction connecting piece for connecting with a traction vehicle, and a traveling wheel is arranged below the bearing plate; the front part of the bearing plate is provided with a storage bin which is communicated with the stirring bin through a material conveying mechanism, the stirring bin is internally provided with a stirring mechanism and a heating mechanism, the stirring bin is connected with a material spraying mechanism, the rear part of the bearing plate is connected with a road roller through a hoisting mechanism, and the material conveying mechanism, the stirring mechanism, the heating mechanism, the material spraying mechanism and the hoisting mechanism are all electrically connected with a power mechanism; the materials are stored in the storage bin and can be prepared at any time, the problem that the materials are insufficient or too much due to the fact that the materials are prepared in advance is avoided, the materials are prepared in the stirring bin and repaired through the material spraying mechanism, and finally the materials are leveled through the road roller, so that multiple functions are integrated, and convenience and construction effects of construction are greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of a road crack processing device for road engineering according to the present invention;
FIG. 2 is a schematic diagram of a part of a feeding mechanism of a road crack processing device for road engineering according to the present invention;
FIG. 3 is a schematic structural view of a stirring bin portion of a highway crack treatment device for highway engineering, provided by the invention;
FIG. 4 is a schematic diagram of an electrical connection relationship of a road crack processing device for road engineering according to the present invention;
in the figure: 1: bearing plate, 2: traction connecting piece, 3: traveling wheel, 4: storage bin, 4-1: feed inlet, 4-2: upper cover, 4-3: inclined structure, 5: conveying mechanism, 5-1: a material conveying cylinder and 5-2: auger and 5-3: defeated material motor, 6: stirring bin, 7: stirring mechanism, 7-1: stirring shaft, 7-2: stirring motor, 7-3: stirring teeth, 8: heating mechanism, 8-1: fixing seat, 8-2: electric heating rod, 9: material spraying mechanism, 9-1: material spraying pipe, 9-2: spray gun, 9-3: material spraying pump, 10: hoisting mechanism, 10-1: cargo boom, 10-2: hydraulic cylinder, 10-3: oil pump, 11: road roller, 12: power mechanism, 12-1: diesel generator, 12-2: solar power generation panel, 12-3: block terminal, 13: a warning light.
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 aims to provide a highway crack treatment device for highway engineering, which aims to solve the problem that no proper construction equipment is available for repairing the existing highway cracks.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1:
the embodiment provides a highway crack processing device for highway engineering, which comprises a bearing plate 1, wherein a traction connecting piece 2 is arranged at the front end of the bearing plate 1 and used for being connected with a traction vehicle, and traveling wheels 3 are arranged below the bearing plate 1; the front portion of bearing board 1 is equipped with storage silo 4, and storage silo 4 is equipped with rabbling mechanism 7 and heating mechanism 8 through defeated material mechanism 5 and stirring storehouse 6 intercommunication in the stirring storehouse 6, and stirring storehouse 6 is connected with spouts material mechanism 9, and the rear portion of bearing board 1 is connected with road roller 11 through hoisting mechanism 10, defeated material mechanism 5, rabbling mechanism 7, heating mechanism 8, spout material mechanism 9 and hoisting mechanism 10 all with power unit 12 electric connection.
Specifically, the top of the storage bin 4 is provided with a feeding hole 4-1, the feeding hole 4-1 is provided with an upper cover 4-2 to prevent material pollution, the bottom of the storage bin 4 is provided with an inclined structure 4-3, and the bottommost end of the inclined structure 4-3 is communicated with a material conveying mechanism 5 to facilitate material emptying.
Further, the material conveying mechanism 5 comprises a material conveying cylinder 5-1, one end of the material conveying cylinder 5-1 is communicated with the bottom end of the storage bin 4, the other end of the material conveying cylinder 5-1 is communicated with the top of the stirring bin 6, an auger 5-2 is arranged in the material conveying cylinder 5-1, the auger 5-2 is in transmission connection with the power output end of a material conveying motor 5-3, and the material conveying motor 5-3 is electrically connected with the power mechanism 12.
Further, the stirring mechanism 7 is arranged at the top of the stirring bin 6, the heating mechanism 8 is arranged at the lower part of the stirring bin 6, and the spraying mechanism 9 is arranged at the bottom of the stirring bin 6.
Further, the stirring mechanism 7 comprises a stirring shaft 7-1, the stirring shaft 7-1 penetrates through the top of the stirring bin 6 and is in transmission connection with a power output end of the stirring motor 7-2, the stirring motor 7-2 is electrically connected with the power mechanism 12, and stirring teeth 7-3 are arranged at the lower part of the stirring shaft 7-1.
Further, the heating mechanism 8 comprises a fixed seat 8-1, the fixed seat 8-1 is arranged at the lower part of the inner side wall of the stirring bin 6, an electric heating rod 8-2 is fixed on the fixed seat 8-1, and the electric heating rod 8-2 is electrically connected with the power mechanism 12.
Further, the material spraying mechanism 9 comprises a material spraying pipe 9-1, one end of the material spraying pipe 9-1 is communicated with the bottom of the stirring bin 6, the other end of the material spraying pipe 9-1 is communicated with a material spraying gun 9-2, the middle of the material spraying pipe 9-1 is connected with a material spraying pump 9-3, and the material spraying pump 9-3 is electrically connected with the power mechanism 12.
Further, the hoisting mechanism 10 comprises a crane boom 10-1, one end of the crane boom 10-1 is hinged to the rear portion of the supporting plate 1, the road roller 11 is rotatably arranged at the other end of the crane boom 10-1, the middle portion of the crane boom 10-1 is hinged to a piston end of a hydraulic cylinder 10-2, a cylinder body end of the hydraulic cylinder 10-2 is hinged to the supporting plate 1, the hydraulic cylinder 10-2 is communicated with an oil pump 10-3, the oil pump 10-3 is electrically connected with a power mechanism 12, when the piston end of the hydraulic cylinder 10-2 is retracted, the hydraulic cylinder 10-2 drives the crane boom 10-1 to retract the road roller 11 onto the supporting plate 1, and when the piston end of the hydraulic cylinder 10-2 extends out, the hydraulic cylinder 10-2 drives the crane boom 10-1 to place the road roller 11 on a road surface.
Furthermore, the power mechanism 12 comprises a diesel generator 12-1 and a solar panel 12-2, the diesel generator 12-1 and the solar panel 12-2 are both electrically connected with a distribution box 12-3, the distribution box 12-3 is used for supplying power, and the diesel generator 12-1 and the solar panel 12-2 are used for generating power in a dual power generation mode, so that the power supply stability is improved, and energy is greatly saved.
Furthermore, warning lights 13 are arranged around the supporting plate 1, and the warning function can be achieved during construction.
When the highway crack treatment device for highway engineering is used, repair raw materials can be stored in the storage bin 4, the device is drawn to a road section to be repaired through a drawing vehicle, the repair raw materials are transferred from the storage bin 4 to the stirring bin 6 through the material conveying mechanism 5 according to the amount of the required repair materials, the stirring mechanism 7 and the heating mechanism 8 are started to prepare the repair raw materials to obtain the repair raw materials, the prepared repair raw materials are poured to a crack through the material spraying mechanism 9, the lifting mechanism 10 is started to put down the road roller 11, and the road roller 11 is driven by the drawing vehicle to flatten the repaired position.
The principle and the implementation mode of the invention are explained by applying a specific embodiment, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (10)
1. The utility model provides a highway crack processing apparatus that highway engineering used which characterized in that: the traction vehicle comprises a bearing plate, wherein a traction connecting piece is arranged at the front end of the bearing plate and used for being connected with a traction vehicle, and a travelling wheel is arranged below the bearing plate; the front portion of the bearing plate is provided with a storage bin which is communicated with a stirring bin through a material conveying mechanism, a stirring mechanism and a heating mechanism are arranged in the stirring bin, the stirring bin is connected with a material spraying mechanism, the rear portion of the bearing plate is connected with a road roller through a hoisting mechanism, and the material conveying mechanism, the stirring mechanism, the heating mechanism, the material spraying mechanism and the hoisting mechanism are all electrically connected with a power mechanism.
2. A road crack processing device for road engineering according to claim 1, wherein: the top of storage silo is equipped with the feed inlet, feed inlet department is equipped with the upper cover, the bottom of storage silo is slope structure, the bottommost of slope structure with defeated material mechanism intercommunication.
3. A road crack processing apparatus for road engineering according to claim 2, wherein: defeated material mechanism includes the defeated feed cylinder, the one end of defeated feed cylinder with the bottom intercommunication of storage silo, the other end of defeated feed cylinder with the top intercommunication of stirring storehouse, be equipped with the auger in the defeated feed cylinder, the auger is connected with the power take off end transmission of defeated material motor, defeated material motor with power unit electric connection.
4. A road crack processing device for road engineering according to claim 3, wherein: the stirring mechanism is arranged at the top of the stirring bin, the heating mechanism is arranged at the lower part of the stirring bin, and the material spraying mechanism is arranged at the bottom of the stirring bin.
5. A road crack processing device for road engineering according to claim 4, wherein: the stirring mechanism comprises a stirring shaft, the stirring shaft penetrates through the top of the stirring bin and is in transmission connection with a power output end of a stirring motor, the stirring motor is electrically connected with the power mechanism, and stirring teeth are arranged on the lower portion of the stirring shaft.
6. A road crack processing device for road engineering according to claim 4, wherein: the heating mechanism comprises a fixed seat, the fixed seat is arranged on the lower portion of the inner side wall of the stirring bin, an electric heating rod is fixed on the fixed seat, and the electric heating rod is electrically connected with the power mechanism.
7. A road crack processing device for road engineering according to claim 4, wherein: the material spraying mechanism comprises a material spraying pipe, one end of the material spraying pipe is communicated with the bottom of the stirring bin, the other end of the material spraying pipe is communicated with a material spraying gun, a material spraying pump is connected to the middle of the material spraying pipe, and the material spraying pump is electrically connected with the power mechanism.
8. A road crack processing device for road engineering according to claim 1, wherein: the lifting mechanism comprises a cargo boom, one end of the cargo boom is hinged to the rear part of the bearing plate, the road roller is rotatably arranged at the other end of the cargo boom, the middle part of the cargo boom is hinged to the piston end of a hydraulic cylinder, the cylinder body end of the hydraulic cylinder is hinged to the bearing plate, the hydraulic cylinder is communicated with an oil pump, and the oil pump is electrically connected with the power mechanism.
9. A road crack processing device for road engineering according to claim 3, 5, 6, 7 or 8, characterized in that: the power mechanism comprises a diesel generator and a solar panel, the diesel generator and the solar panel are both electrically connected with the distribution box, and the distribution box is used for supplying power.
10. A road crack processing device for road engineering according to claim 1, wherein: warning lights are arranged around the bearing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210665006.5A CN115012286A (en) | 2022-05-09 | 2022-05-09 | Highway crack processing apparatus that highway engineering was used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210665006.5A CN115012286A (en) | 2022-05-09 | 2022-05-09 | Highway crack processing apparatus that highway engineering was used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115012286A true CN115012286A (en) | 2022-09-06 |
Family
ID=83075293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210665006.5A Pending CN115012286A (en) | 2022-05-09 | 2022-05-09 | Highway crack processing apparatus that highway engineering was used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115012286A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4322178A (en) * | 1980-02-29 | 1982-03-30 | Lee Billy R | Pavement patching apparatus |
| US9068296B1 (en) * | 2014-03-14 | 2015-06-30 | SuperiorRoads Solutions Limited Partnership | Thermostatically controlled asphalt heater for a mobile pavement patching vehicle |
| CN211079853U (en) * | 2019-06-17 | 2020-07-24 | 济南鑫鹏市政园林工程有限公司 | Road transformation maintenance device |
| CN112127248A (en) * | 2020-09-08 | 2020-12-25 | 阜阳市科信交通工程试验检测有限公司 | Road deterioration renovation mechanism |
| CN212656093U (en) * | 2020-06-30 | 2021-03-05 | 济宁市福瑞得机械有限公司 | Asphalt crack sealing machine with discharging and automatic stirring system |
| CN214613503U (en) * | 2021-01-07 | 2021-11-05 | 郭玲 | Leveling device for filling highway cracks |
| CN215104552U (en) * | 2021-07-14 | 2021-12-10 | 南通市江海公路工程有限公司 | Highway is cementation of fissures device for bituminous paving maintenance |
| CN215482190U (en) * | 2021-06-01 | 2022-01-11 | 邵祥瑞 | Civil engineering construction road surface flattening maintenance device |
| CN114319047A (en) * | 2022-01-24 | 2022-04-12 | 泸州职业技术学院 | Asphalt pavement thermal regeneration comprehensive repairing vehicle and pavement repairing method |
-
2022
- 2022-05-09 CN CN202210665006.5A patent/CN115012286A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4322178A (en) * | 1980-02-29 | 1982-03-30 | Lee Billy R | Pavement patching apparatus |
| US9068296B1 (en) * | 2014-03-14 | 2015-06-30 | SuperiorRoads Solutions Limited Partnership | Thermostatically controlled asphalt heater for a mobile pavement patching vehicle |
| CN211079853U (en) * | 2019-06-17 | 2020-07-24 | 济南鑫鹏市政园林工程有限公司 | Road transformation maintenance device |
| CN212656093U (en) * | 2020-06-30 | 2021-03-05 | 济宁市福瑞得机械有限公司 | Asphalt crack sealing machine with discharging and automatic stirring system |
| CN112127248A (en) * | 2020-09-08 | 2020-12-25 | 阜阳市科信交通工程试验检测有限公司 | Road deterioration renovation mechanism |
| CN214613503U (en) * | 2021-01-07 | 2021-11-05 | 郭玲 | Leveling device for filling highway cracks |
| CN215482190U (en) * | 2021-06-01 | 2022-01-11 | 邵祥瑞 | Civil engineering construction road surface flattening maintenance device |
| CN215104552U (en) * | 2021-07-14 | 2021-12-10 | 南通市江海公路工程有限公司 | Highway is cementation of fissures device for bituminous paving maintenance |
| CN114319047A (en) * | 2022-01-24 | 2022-04-12 | 泸州职业技术学院 | Asphalt pavement thermal regeneration comprehensive repairing vehicle and pavement repairing method |
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Application publication date: 20220906 |
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| RJ01 | Rejection of invention patent application after publication |