CN110318326A - One kind paves uniform asphalt paving equipment - Google Patents
One kind paves uniform asphalt paving equipment Download PDFInfo
- Publication number
- CN110318326A CN110318326A CN201910639016.XA CN201910639016A CN110318326A CN 110318326 A CN110318326 A CN 110318326A CN 201910639016 A CN201910639016 A CN 201910639016A CN 110318326 A CN110318326 A CN 110318326A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- rack
- paves
- motor
- storage bin
- 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.)
- Pending
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 29
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 238000003801 milling Methods 0.000 claims abstract description 15
- 230000002787 reinforcement Effects 0.000 claims abstract description 10
- 125000003003 spiro group Chemical group 0.000 claims abstract description 8
- 238000005056 compaction Methods 0.000 claims description 17
- 230000001360 synchronised effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/488—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with rollers for consolidating or finishing combined with tamping, vibrating, pressing or smoothing consolidation or finishing means
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The present invention relates to road construction equipment fields, more specifically, it is that one kind paves uniform asphalt paving equipment, including rack, support frame, milling roller and storage bin, the lower surface of the rack is fixedly connected with support frame, milling roller is installed on support frame, the upper surface of rack is fixedly connected with the motor that paves, the axle stretch end of motor of paving is fixedly connected with shaft, the lower end of shaft is fixedly connected with flase floor, the upper surface of rack is fixedly connected with feeding storehouse, the side wall of feeding storehouse is fixedly connected with feeding motor, the inside of feeding storehouse is equipped with feeding spiro rod, the upper surface of feeding storehouse is fixedly connected with storage bin, the lower surface of rack is equipped with reinforcement mechanism, by the way that agitating shaft is arranged, stirring rod, pitch is stirred, by the way that rotatable flase floor is arranged, fall pitch dispersion on the ground, keep paving process more uniform, it utilizes Reinforcement mechanism tamps road surface, and asphalt paving operation is synchronous with tamping operation to be carried out, and greatly improves work efficiency.
Description
Technical field
The present invention relates to road construction equipment fields, are that one kind paves uniform asphalt paving equipment more specifically.
Background technique
Bituminous pavement refers to various types of road surfaces that bitumen for road use material making is mixed in mineral material.Pitch combines
Material, which improves to pave the way, resists the ability of driving and the damage of natural cause road pavement with pellet, and evenness of road surface is made to lack dirt, waterproof, warp
It is durable long.Therefore, bituminous pavement is a kind of high class pavement being the most widely used in road construction.The pitch class knot of bituminous pavement
Structure layer itself belongs to flexible pavement scope, but rigid cement concrete, or half can also be used in addition to flexible material in its base
The hydraulic material of rigidity.
In asphalt pavement construction, generally require to use asphalt paving equipment, existing asphalt paving equipment is laid with uneven
Even, paving operation synchronous cannot be carried out with tamping operation, and working efficiency is lower.
Summary of the invention
It paves uniform asphalt paving equipment the purpose of the present invention is to provide one kind, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme:
One kind paves uniform asphalt paving equipment, including rack, support frame, milling roller and storage bin, the following table of the rack
Face is fixedly connected with support frame, and milling roller is equipped on support frame, and the upper surface of rack is fixedly connected with the motor that paves, and pave electricity
The axle stretch end of machine is fixedly connected with shaft, and the lower end of shaft is fixedly connected with flase floor, and the upper surface of rack, which is fixedly connected with, to be sent
Feed bin, the side wall of feeding storehouse are fixedly connected with feeding motor, and the inside of feeding storehouse is equipped with feeding spiro rod, the upper surface of feeding storehouse
It is fixedly connected with storage bin, the lower surface of rack is equipped with reinforcement mechanism.
Further: the side wall of support frame as described above is also equipped with the driving motor for driving milling roller to rotate.
Further: the right side of the shaft is equipped with telescoping mechanism, and the upper end of telescoping mechanism and the lower surface of rack turn
Dynamic connection, the lower end of telescoping mechanism is fixedly connected with scraper plate.
Further: the telescoping mechanism is electric hydaulic telescoping cylinder.
Further: inclined downward, the lower left side of storage bin offer blanking to the left for the bottom of the storage bin
Hole, storage bin are connected to by blanking hole with feeding storehouse, and the upper surface of storage bin is fixedly connected with feeding port.
Further: the upper surface of the storage bin is fixedly connected with stirring motor, and the axle stretch end of stirring motor is fixed
It is connected with agitating shaft, agitating shaft is S-shaped, and stirring rod is distributed on agitating shaft, and the inner wall of storage bin is fixedly connected with electric hot plate, send
The right side wall of feed bin is equipped with drainage conduit.
Further: the reinforcement mechanism includes fixed frame, compacting motor, crankshaft, connecting rod and compaction plate, under rack
Surface is fixedly connected with fixed frame, and the side wall of fixed frame is fixedly connected with compacting motor, and the axle stretch end for tamping motor is fixedly connected
There is crankshaft, connecting rod is arranged at the axle journal of crankshaft, the lower end of connecting rod is hinged with compaction plate.
Further: the upper surface of the compaction plate is fixedly connected with guide rod, and the upper end of guide rod is arranged with sleeve,
Guide rod is slidably connected with sleeve, and the top of sleeve is fixedly connected with the lower surface of rack.
Using technical solution provided by the invention, compared with prior art, the embodiment of the present invention is had the following beneficial effects:
In, by the way that agitating shaft, stirring rod is arranged, pitch is stirred, by the way that rotatable flase floor is arranged, falls in pitch dispersion
On ground, keep paving process more uniform, the pitch being attached on flase floor struck off using scraper plate, flase floor is avoided to be blocked,
Road surface is tamped using reinforcement mechanism, asphalt paving operation is synchronous with tamping operation to be carried out, and greatly improves work efficiency, solves
Existing asphalt paving equipment be laid with uneven, paving operation and tamping operation cannot synchronous progress the problem of.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of uniform asphalt paving apparatus embodiments 1 of paving；
Fig. 2 is the perspective view of storage bin in uniform asphalt paving apparatus embodiments 1 of paving；
Fig. 3 is the structural schematic diagram of crankshaft in uniform asphalt paving apparatus embodiments 2 of paving；
Fig. 4 is the left view of compaction plate in uniform asphalt paving apparatus embodiments 2 of paving.
Label declaration in schematic diagram: 1- rack；2- support frame；3- milling roller；4- driving motor；5- fixed frame；6- is rammed
Real motor；7- crankshaft；8- connecting rod；9- compaction plate；10- guide rod；11- sleeve；12- paves motor；13- shaft；14- grid
Plate；15- telescoping mechanism；16- scraper plate；17- transmission belt；18- feeding storehouse；19- feeding motor；20- feeding spiro rod；21- drainage conduit；
22- storage bin；23- feeding port；24- stirring motor；25- agitating shaft；26- stirring rod；27- electric hot plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention, and the present invention will be further described with reference to the examples below.
Embodiment 1
Please refer to Fig. 1,2, in the embodiment of the present invention, one kind paves uniform asphalt paving equipment, including rack 1, support frame 2,
Milling roller 3 and storage bin 22, the lower surface of rack 1 are fixedly connected with support frame 2, and milling roller 3 is equipped on support frame 2, utilize
3 compacting asphalt of milling roller, the side wall of support frame 2 are also equipped with the driving motor 4 for driving milling roller 3 to rotate, rack 1
Upper surface be fixedly connected with the motor 12 that paves, the axle stretch end for the motor 12 that paves is fixedly connected with shaft 13, and shaft 13 passes through machine
Frame 1 extends to the lower section of rack 1, and the lower end of shaft 13 is fixedly connected with flase floor 14, and the right side of shaft 13 is equipped with telescoping mechanism
15, telescoping mechanism 15 is electric hydaulic telescoping cylinder, and the upper end of telescoping mechanism 15 and the lower surface of rack 1 are rotatablely connected, telescopic machine
The lower end of structure 15 is fixedly connected with scraper plate 16, and telescoping mechanism 15 is connected by transmission belt 17 with shaft 13, the motor 12 that paves fortune
It drives shaft 13 to rotate when row, so that flase floor 14 be driven to rotate, while shaft 13 rotates, telescoping mechanism 15 is driven to rotate,
To drive scraper plate 16 to rotate synchronously.
The upper surface of rack 1 is fixedly connected with feeding storehouse 18, and the side wall of feeding storehouse 18 is fixedly connected with feeding motor 19, send
The inside of feed bin 18 is equipped with feeding spiro rod 20, and the axle stretch end of feeding motor 19 is connected with feeding spiro rod 20, feeding storehouse 18
Upper surface is fixedly connected with storage bin 22, and inclined downward, the lower left side of storage bin 22 open up to the left for the bottom of storage bin 22
There is blanking hole, storage bin 22 is connected to by blanking hole with feeding storehouse 18, and the upper surface of storage bin 22 is fixedly connected with feeding port 23,
Pitch is poured into storage bin 22 by feeding port 23, and the upper surface of storage bin 22 is fixedly connected with stirring motor 24, stirring motor
24 axle stretch end is fixedly connected with agitating shaft 25, and agitating shaft 25 is S-shaped, and several stirring rod 26, storing are distributed on agitating shaft 25
The inner wall in storehouse 22 is fixedly connected with several electric hot plates 27, is heated using electric hot plate 27 to pitch, improves the mobility of pitch,
Start stirring motor 24, agitating shaft 25 is driven to rotate, stirs pitch using agitating shaft 25, stirring rod 26, the drip in storage bin 22
Green to be flowed into feeding storehouse 18 by blanking hole, the right side wall of feeding storehouse 18 is equipped with drainage conduit 21, and the lower end of drainage conduit 21 is located at
The top of flase floor 14 starts feeding motor 19, and feeding spiro rod 20 is driven to rotate, and pitch is squeezed out by drainage conduit 21, falls on lattice
On screen 14, flase floor 14 is rotated, and is fallen pitch dispersion on the ground, is kept paving process more uniform.
Embodiment 2
Fig. 3,4 are please referred to, on the basis of embodiment 1, the lower surface of rack 1 is equipped with reinforcement mechanism, and reinforcement mechanism includes solid
Determine frame 5, compacting motor 6, crankshaft 7, connecting rod 8 and compaction plate 9, the lower surface of rack 1 and is fixedly connected with fixed frame 5, fixed frame 5
Side wall is fixedly connected with compacting motor 6, and the axle stretch end of compacting motor 6 is fixedly connected with crankshaft 7, is arranged at the axle journal of crankshaft 7
Connecting rod 8, the lower end of connecting rod 8 are hinged with compaction plate 9, and the upper surface of compaction plate 9 is fixedly connected with guide rod 10, guide rod 10 it is upper
End cap is equipped with sleeve 11, and guide rod 10 is slidably connected with sleeve 11, and the top of sleeve 11 is fixedly connected with the lower surface of rack 1,
Starting compacting motor 6, band dynamic crankshaft 7 are rotated, to drive compaction plate 9 to move up and down by connecting rod 8, are played using guide rod 10
Guiding role makes compaction plate 9 remain horizontality during moving up and down, and tamps road surface, pitch using compaction plate 9
Paving operation is synchronous with tamping operation to carry out, and greatly improves work efficiency.
1, embodiment 2 in conjunction with the embodiments, the working principle of the invention is: pitch is poured into storage bin 22 by feeding port 23
It is interior, pitch is heated using electric hot plate 27, improves the mobility of pitch, starts stirring motor 24, drives 25 turns of agitating shaft
It is dynamic, pitch is stirred using agitating shaft 25, stirring rod 26, the pitch in storage bin 22 is flowed into feeding storehouse 18 by blanking hole, is sent
The right side wall of feed bin 18 is equipped with drainage conduit 21, and the lower end of drainage conduit 21 is located at the top of flase floor 14, starts feeding motor 19,
Feeding spiro rod 20 is driven to rotate, pitch is squeezed out by drainage conduit 21, is fallen on flase floor 14, and the motor 12 that paves, band turn are started
Axis 13 rotates, so that flase floor 14 be driven to rotate, falls pitch dispersion on the ground, keeps paving process more uniform, control is stretched
Contracting mechanism 15 extends, and drives scraper plate 16 to move down, makes the pitch joint of scraper plate 16 Yu 14 upper surface of flase floor, and 13 turns of shaft
While dynamic, telescoping mechanism 15 is driven to rotate, so that scraper plate 16 be driven to rotate synchronously, is struck off using scraper plate 16 and be attached to flase floor
Pitch on 14 avoids flase floor 14 from being blocked, and starts driving motor 4, and the driving present apparatus is mobile, is compacted drip using milling roller 3
Blueness, starting compacting motor 6, band dynamic crankshaft 7 rotate, to drive compaction plate 9 to move up and down by connecting rod 8, utilize guide rod 10
Guiding role is played, compaction plate 9 is made to remain horizontality during moving up and down, tamps road surface using compaction plate 9,
Asphalt paving operation is synchronous with tamping operation to be carried out, and is greatly improved work efficiency.
It should be strongly noted that rack 1, support frame 2, milling roller 3 and storage bin 22 are the prior art in the application
Using rotatable flase floor, scraper plate, stirring motor, agitating shaft, the innovative point that reinforcement mechanism is the application effectively solve
Existing asphalt paving equipment be laid with uneven, paving operation and tamping operation cannot synchronous progress the problem of.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
- The uniform asphalt paving equipment 1. one kind paves, including rack (1), support frame (2), milling roller (3) and storage bin (22), It is characterized in that, the lower surface of the rack (1) is fixedly connected with support frame (2), milling roller (3) are installed on support frame (2), The upper surface of rack (1) is fixedly connected with the motor that paves (12), and the axle stretch end of the motor that paves (12) is fixedly connected with shaft (13), The lower end of shaft (13) is fixedly connected with flase floor (14), and the upper surface of rack (1) is fixedly connected with feeding storehouse (18), feeding storehouse (18) side wall is fixedly connected with feeding motor (19), and the inside of feeding storehouse (18) is equipped with feeding spiro rod (20), feeding storehouse (18) upper surface is fixedly connected with storage bin (22), and the lower surface of rack (1) is equipped with reinforcement mechanism.
- 2. the uniform asphalt paving equipment according to claim 1 that paves, which is characterized in that the side of support frame as described above (2) Wall is also equipped with the driving motor (4) for driving milling roller (3) to rotate.
- 3. the uniform asphalt paving equipment according to claim 1 that paves, which is characterized in that the right side of the shaft (13) Equipped with telescoping mechanism (15), the upper end of telescoping mechanism (15) and the lower surface of rack (1) are rotatablely connected, under telescoping mechanism (15) End is fixedly connected with scraper plate (16).
- 4. the uniform asphalt paving equipment according to claim 3 that paves, which is characterized in that the telescoping mechanism (15) is Electric hydaulic telescoping cylinder.
- 5. the uniform asphalt paving equipment according to claim 1 that paves, which is characterized in that the bottom of the storage bin (22) Inclined downward, the lower left side of storage bin (22) offer blanking hole to the left in portion, and storage bin (22) passes through blanking hole and feeding Storehouse (18) connection, the upper surface of storage bin (22) is fixedly connected with feeding port (23).
- 6. the uniform asphalt paving equipment according to claim 5 that paves, which is characterized in that the storage bin (22) it is upper Surface is fixedly connected with stirring motor (24), and the axle stretch end of stirring motor (24) is fixedly connected with agitating shaft (25), agitating shaft (25) S-shaped, it is distributed on agitating shaft (25) stirring rod (26), the inner wall of storage bin (22) is fixedly connected with electric hot plate (27), The right side wall of feeding storehouse (18) is equipped with drainage conduit (21).
- 7. -6 any uniform asphalt paving equipment that paves according to claim 1, which is characterized in that the reinforcement mechanism It is fixedly connected including fixed frame (5), compacting motor (6), crankshaft (7), connecting rod (8) and compaction plate (9), the lower surface of rack (1) Have fixed frame (5), the side wall of fixed frame (5) is fixedly connected with compacting motor (6), and the axle stretch end of compacting motor (6) is fixedly connected Have crankshaft (7), be arranged at the axle journal of crankshaft (7) connecting rod (8), the lower end of connecting rod (8) is hinged with compaction plate (9).
- 8. the uniform asphalt paving equipment according to claim 7 that paves, which is characterized in that the compaction plate (9) it is upper Surface is fixedly connected with guide rod (10), and the upper end of guide rod (10) is arranged with sleeve (11), guide rod (10) and sleeve (11) It is slidably connected, the top of sleeve (11) is fixedly connected with the lower surface of rack (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910639016.XA CN110318326A (en) | 2019-07-16 | 2019-07-16 | One kind paves uniform asphalt paving equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910639016.XA CN110318326A (en) | 2019-07-16 | 2019-07-16 | One kind paves uniform asphalt paving equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110318326A true CN110318326A (en) | 2019-10-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910639016.XA Pending CN110318326A (en) | 2019-07-16 | 2019-07-16 | One kind paves uniform asphalt paving equipment |
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| CN (1) | CN110318326A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939038A (en) * | 2019-10-31 | 2020-03-31 | 杭州宝力体育设施工程有限公司 | Plastic track plastic stirring device |
| CN111155398A (en) * | 2020-01-05 | 2020-05-15 | 田亥心 | Highway construction is with flat native compaction device |
| CN111172964A (en) * | 2020-02-25 | 2020-05-19 | 江苏丰阳建设工程有限公司 | Self-feeding type soil ramming device for land leveling engineering |
| CN111395113A (en) * | 2020-04-03 | 2020-07-10 | 嘉兴勤慎智能技术有限公司 | Road construction is with equipment that rolls |
| CN111576152A (en) * | 2020-05-19 | 2020-08-25 | 安徽三建工程有限公司 | Frame for laying precast concrete pavement and using method thereof |
| CN111778817A (en) * | 2020-07-28 | 2020-10-16 | 张盼盼 | Highway construction pavement base layer treatment equipment and pavement base layer treatment process |
| CN112127239A (en) * | 2020-09-21 | 2020-12-25 | 天元建设集团有限公司 | Multifunctional paver for asphalt pavement and construction method thereof |
| CN112681427A (en) * | 2020-12-29 | 2021-04-20 | 国网河南省电力公司西峡县供电公司 | Ground grooving mechanism and cable laying device |
| CN113152211A (en) * | 2021-05-10 | 2021-07-23 | 青海省水利水电工程局有限责任公司 | Stirring and paving equipment for filling uneven dam materials |
| CN113463617A (en) * | 2021-05-22 | 2021-10-01 | 秦超 | Earth and rockfill dam tamping rolling device with automatic filling function |
| CN114108428A (en) * | 2021-12-07 | 2022-03-01 | 浙江明通建设工程有限公司 | Asphalt laying equipment for municipal engineering building |
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| CN211282239U (en) * | 2019-11-29 | 2020-08-18 | 潍坊富群新材料有限公司 | Modified asphalt waterproofing membrane production holds device with pitch |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939038A (en) * | 2019-10-31 | 2020-03-31 | 杭州宝力体育设施工程有限公司 | Plastic track plastic stirring device |
| CN111155398A (en) * | 2020-01-05 | 2020-05-15 | 田亥心 | Highway construction is with flat native compaction device |
| CN111172964B (en) * | 2020-02-25 | 2020-11-13 | 江苏丰阳建设工程有限公司 | Self-feeding type soil ramming device for land leveling engineering |
| CN111172964A (en) * | 2020-02-25 | 2020-05-19 | 江苏丰阳建设工程有限公司 | Self-feeding type soil ramming device for land leveling engineering |
| CN111395113A (en) * | 2020-04-03 | 2020-07-10 | 嘉兴勤慎智能技术有限公司 | Road construction is with equipment that rolls |
| CN111576152A (en) * | 2020-05-19 | 2020-08-25 | 安徽三建工程有限公司 | Frame for laying precast concrete pavement and using method thereof |
| CN111778817A (en) * | 2020-07-28 | 2020-10-16 | 张盼盼 | Highway construction pavement base layer treatment equipment and pavement base layer treatment process |
| CN112127239A (en) * | 2020-09-21 | 2020-12-25 | 天元建设集团有限公司 | Multifunctional paver for asphalt pavement and construction method thereof |
| CN112681427A (en) * | 2020-12-29 | 2021-04-20 | 国网河南省电力公司西峡县供电公司 | Ground grooving mechanism and cable laying device |
| CN113152211A (en) * | 2021-05-10 | 2021-07-23 | 青海省水利水电工程局有限责任公司 | Stirring and paving equipment for filling uneven dam materials |
| CN113463617A (en) * | 2021-05-22 | 2021-10-01 | 秦超 | Earth and rockfill dam tamping rolling device with automatic filling function |
| CN113463617B (en) * | 2021-05-22 | 2023-02-21 | 秦超 | Earth and rockfill dam tamping rolling device with automatic filling function |
| CN114108428A (en) * | 2021-12-07 | 2022-03-01 | 浙江明通建设工程有限公司 | Asphalt laying equipment for municipal engineering building |
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Application publication date: 20191011 |
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| RJ01 | Rejection of invention patent application after publication |