CN110409268A - A kind of novel road construction equipment - Google Patents
A kind of novel road construction equipment Download PDFInfo
- Publication number
- CN110409268A CN110409268A CN201910737877.1A CN201910737877A CN110409268A CN 110409268 A CN110409268 A CN 110409268A CN 201910737877 A CN201910737877 A CN 201910737877A CN 110409268 A CN110409268 A CN 110409268A
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- China
- Prior art keywords
- cabinet
- construction equipment
- crushing
- water tank
- road construction
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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
-
- 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
- E01C23/12—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
Abstract
The invention patent relates to construction of the highway field of engineering technology, in particular a kind of novel road construction equipment, including driver's cabin, the traveling wheel that is mounted on the pedestal of two sides and is mounted on the inside of pedestal, first cabinet is installed on the left of the driver's cabin, crushing mechanism is installed at the top of first box inside, limited position mechanism is arranged for carrying out pavement breaking work, the side of the crushing mechanism in the crushing mechanism.The invention patent passes through the setting of the first cabinet, crushing mechanism, position-limit mechanism, dust hood, dust collection mechanism, support plate, water tank, the second cabinet, elevating mechanism and road roller structure, so that the highway construction equipment, which has, road pavement to carry out broken and flattening-out simultaneously, and the advantages of capable of preventing dust from raising, it solves at present when road pavement carries out broken repair, step is relatively complicated, but also the dust operator that complete, while generate by different machines sucks the problem of adversely affecting health to body.
Description
Technical field
The invention patent relates to construction of the highway field of engineering technology, specially a kind of novel road construction equipment.
Background technique
Highway engineering refers to the work such as prospecting, measurement, design, construction, maintenance, the management of Highway Structural Material, highway engineering
Structure includes: roadbed, road surface, bridge, culvert, tunnel, drainage system, safety protection facility, greening and traffic monitoring facilities,
And house, workshop and other service equipments that construction, maintenance and monitoring use, high grade project will not only have good set
Meter, and the quality of construction quality is depended on to a greater extent, in construction, material, equipment, operation are to guarantee product quality
Key link, all constructions must all strictly observe each job specfication.
It at present when road pavement carries out broken repair, needs completely to smash damaged road surface, then by its flattening-out, walk
It is rapid relatively complicated, but also to be completed by different machines, while during broken road surface, a large amount of dust drifts can be generated
It is floating that health can be adversely affected body by operator's sucking in air, propose thus one kind can simultaneously road pavement into
Row is broken and flattening-out, and the highway construction equipment that can prevent dust from raising solves the problems, such as this.
Patent of invention content
The invention patent is designed to provide a kind of novel road construction equipment, and have road pavement to carry out brokenly simultaneously
Broken and flattening-out, and the advantages of can prevent dust from raising, it solves at present when road pavement carries out broken repair, step is more numerous
It is trivial, but also to be completed by different machines, while the dust operator sucking generated can be unfavorable by Kang Zaocheng to body
The problem of influence.
To achieve the above object, the invention patent provides the following technical solutions: a kind of novel road construction equipment, including drives
The traveling wheel for sailing room, being mounted on the pedestal of two sides and being mounted on the inside of pedestal is equipped with the first case on the left of the driver's cabin
Body, crushing mechanism is equipped at the top of first box inside, and the crushing mechanism is described for carrying out pavement breaking work
Limited position mechanism is arranged in the side of crushing mechanism, and the position-limit mechanism is for limiting the movement of crushing mechanism, and described the
The bottom of one cabinet is fixedly installed with dust hood, and dust collection mechanism is provided on the inside of the dust hood, and the dust collection mechanism is used for
Cleaning operation is carried out, the bottom on the right side of the dust hood is fixedly connected with support plate, is provided with water tank at the top of the support plate,
Bottom on the right side of the driver's cabin is fixedly connected with the second cabinet, is equipped with elevating mechanism at the top of second box inside,
For the elevating mechanism for carrying out lift adjustment operation, the bottom of the elevating mechanism is equipped with road roller structure, the road roller
Structure is for carrying out road surface flattening-out operation.
Preferably, the crushing mechanism includes the first hydraulic stem, the top of first hydraulic stem and the first cabinets cavity
Bolt, the bottom bolt of first hydraulic stem have connecting plate, and the bottom bolt of the connecting plate has crushing rod, the crushing rod
Bottom bolt have crushing head.
Preferably, the position-limit mechanism includes sliding sleeve, and the sliding sleeve is embedded in the two sides of connection plate surface, the sliding sleeve
Inside is provided through gag lever post, is fixedly connected at the top of the top of the gag lever post and the first cabinets cavity, first case
The two sides of internal wall offer limiting slot, and the two sides of the connecting plate are fixedly connected to limited block, and the limited block is located at
The inside of limiting slot is simultaneously slidably connected between the inner wall of limiting slot.
Preferably, the dust collection mechanism includes blower, and the blower is located at the left side of tank top, the dust discharge of the blower
Pipe is through to the inside of water tank, and the sweep-up pipe of the blower is communicated with hollow tube, and the left end of the hollow tube is communicated with bypass duct,
The bottom end of the bypass duct is communicated with cleaner head.
Preferably, the bypass duct and crushing head intert setting in the longitudinal direction, and the crushing head sets for triplets
Set, and the quantity of bypass duct than crushing head number of rows more than one.
Preferably, the elevating mechanism includes the second hydraulic stem, and the two sides of second hydraulic stem are provided with telescopic rod,
The bottom end bolt of second hydraulic stem has a fixed plate, and the both ends of the fixed plate are fixedly connected to sliding block, the sliding block with
It is slidably connected between the inner wall of second cabinet.
Preferably, the top of second hydraulic stem and telescopic rod bolts between the top of the second cabinets cavity, institute
The surface of the bottom end and fixed plate of stating telescopic rod bolts, and telescopic rod is located at the quadrangle at the top of fixed plate.
Preferably, the road roller structure includes mounting rack, the bottom bolt of the mounting rack and fixed plate, the mounting rack
Quantity be two, and connecting shaft is rotatably connected on the inside of mounting rack, the one end of the connecting shaft far from mounting rack is fixed to be connected
It is connected to roller, the surface of the roller offers annular groove.
Preferably, the positive left side of the water tank offers level window, has been respectively communicated on the right side of the tank top logical
Tracheae and filler pipe, the water tank front are communicated with drainpipe on the right side of bottom.
Preferably, the two sides of the tank inner wall offer mounting groove, are provided with filter plate below the water tank cavity,
The both ends of the filter plate are respectively positioned on the inside of mounting groove and are slidably connected between the inner wall of mounting groove.
Compared with prior art, the invention patent has the beneficial effect that:
The invention patent by the first cabinet, crushing mechanism, position-limit mechanism, dust hood, dust collection mechanism, support plate, water tank,
The setting of second cabinet, elevating mechanism and road roller structure, so that the highway construction equipment, which has, road pavement to carry out brokenly simultaneously
Broken and flattening-out, and the advantages of can prevent dust from raising, it solves at present when road pavement carries out broken repair, step is more numerous
It is trivial, but also to be completed by different machines, while the dust operator sucking generated can be unfavorable by Kang Zaocheng to body
The problem of influence.
Detailed description of the invention
Fig. 1 is the invention patent structural schematic diagram；
Fig. 2 is the partial enlarged view in the invention patent Fig. 1 at A；
Fig. 3 is the structure right view of the invention patent road roller structure；
Fig. 4 is the invention patent partial structurtes bottom view；
Fig. 5 is the structure sectional view of the invention patent water tank.
In figure: 1 driver's cabin, 2 pedestals, 3 traveling wheels, 4 first cabinets, 5 crushing mechanisms, 6 position-limit mechanisms, 7 dust hoods, 8 are inhaled
Dirt mechanism, 9 support plates, 10 water tanks, 11 second cabinets, 12 elevating mechanisms, 13 road roller structures, 14 level windows, 15 snorkels, 16 add
Water pipe, 17 drainpipes, 18 mounting grooves, 19 filter plates, 51 first hydraulic stems, 52 connecting plates, 53 crushing rods, 54 crushing heads, 61 sliding sleeves,
62 gag lever posts, 63 limiting slots, 64 limited blocks, 81 blowers, 82 hollow tubes, 83 bypass ducts, 84 cleaner heads, 121 second hydraulic stems,
122 telescopic rods, 123 fixed plates, 124 sliding blocks, 131 mounting racks, 132 connecting shafts, 133 rollers, 134 annular grooves.
Specific embodiment
Below in conjunction with the attached drawing in the invention patent embodiment, the technical solution in the invention patent embodiment is carried out
Clearly and completely describing, it is clear that described embodiment is only the invention patent a part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the invention patent, those of ordinary skill in the art are without making creative work
Every other embodiment obtained belongs to the range of the invention patent protection.
Fig. 1-5 is please referred to, a kind of novel road construction equipment including driver's cabin 1, is mounted on the pedestal 2 of two sides and pacifies
Traveling wheel 3 mounted in 2 inside of pedestal, the left side of driver's cabin 1 are equipped with the first cabinet 4, and the top of 4 inside of the first cabinet is equipped with
Limited position mechanism 6, position restrainer is arranged for carrying out pavement breaking work, the side of crushing mechanism 5 in crushing mechanism 5, crushing mechanism 5
For structure 6 for limiting to the movement of crushing mechanism 5, the bottom of the first cabinet 4 is fixedly installed with dust hood 7, dust hood 7 it is interior
Side is provided with dust collection mechanism 8, and dust collection mechanism 8 is fixedly connected with support plate for carrying out cleaning operation, the bottom on 7 right side of dust hood
9, the top of support plate 9 is provided with water tank 10, and the bottom on 1 right side of driver's cabin is fixedly connected with the second cabinet 11, the second cabinet 11
Elevating mechanism 12 is installed, elevating mechanism 12 is for carrying out lift adjustment operation, the bottom peace of elevating mechanism 12 at the top of inside
Equipped with road roller structure 13, road roller structure 13 passes through the first cabinet 4, crushing mechanism 5, position restrainer for carrying out road surface flattening-out operation
The setting of structure 6, dust hood 7, dust collection mechanism 8, support plate 9, water tank 10, the second cabinet 11, elevating mechanism 12 and road roller structure 13,
So that the highway construction equipment, which has, road pavement to carry out broken and flattening-out simultaneously, and the advantages of can prevent dust from raising, solution
It has determined at present when road pavement carries out broken repair, step is relatively complicated, but also to complete by different machines, produces simultaneously
The problem of health can be adversely affected body by raw dust operator sucking.
In the present embodiment, crushing mechanism 5 includes the first hydraulic stem 51, the top of 4 inner cavity of the first hydraulic stem 51 and the first cabinet
Portion's bolt, the bottom bolt of the first hydraulic stem 51 have connecting plate 52, and the bottom bolt of connecting plate 52 has crushing rod 53, crushing rod 53
Bottom bolt have crushing head 54, their quantity is several, and single connecting plate 52 and three the first hydraulic stems 51 and is broken
Broken bar 53 is used cooperatively, and the precrushing for carrying out road surface operates.
In the present embodiment, position-limit mechanism 6 includes sliding sleeve 61, and sliding sleeve 61 is embedded the two sides on 52 surface of connecting plate, sliding sleeve 61
Inside be provided through gag lever post 62, be fixedly connected at the top of the top of gag lever post 62 and 4 inner cavity of the first cabinet, the first cabinet
The two sides of 4 inner walls offer limiting slot 63, and the two sides of connecting plate 52 are fixedly connected to limited block 64, and limited block 64 is located at limit
The inside of position slot 63 is simultaneously slidably connected between the inner wall of limiting slot 63, passes through sliding sleeve 61, gag lever post 62, limiting slot 63 and limit
The setting of block 64, they play the role of limiting when moving connecting plate 52, guarantee connecting plate 52 in the vertical direction
The stability of movement, and then improve the fragmentation quality on road surface.
In the present embodiment, dust collection mechanism 8 includes blower 81, and blower 81 is located at the left side at 10 top of water tank, the row of blower 81
Dirt pipe is through to the inside of water tank 10, and the sweep-up pipe of blower 81 is communicated with hollow tube 82, and the left end of hollow tube 82 is communicated with branch
Pipe 83, the bottom end of bypass duct 83 are communicated with cleaner head 84, the negative pressure that the work of blower 81 generates, a large amount of ashes that broken work is generated
The inside of dirt sucking water tank 10 achievees the effect that dedusting so that it is integrated with water, and ensure that the feature of environmental protection of fragmentation procedure.
In the present embodiment, bypass duct 83 and crushing head 54 intert setting in the longitudinal direction, and crushing head 54 is triplets
Setting, and the quantity of bypass duct 83 than crushing head 54 number of rows more than one, intert the bypass duct 83 and crushing head 54 of setting, can be with
Guarantee under the premise of not influencing broken work, dust suction is carried out to the inside of dust hood 7, the setting of multiple cleaner heads 84 can
To guarantee the quality of dust suction.
In the present embodiment, elevating mechanism 12 includes the second hydraulic stem 121, and the two sides of the second hydraulic stem 121, which are provided with, stretches
The bottom end bolt of contracting bar 122, the second hydraulic stem 121 has fixed plate 123, and the both ends of fixed plate 123 are fixedly connected to sliding block
124, it is slidably connected between sliding block 124 and the inner wall of the second cabinet 11, the second hydraulic stem 121 stretches for carrying out lift adjustment
Bar 122 can passively stretch, and cooperate with sliding block 124, play and limit 123 up and down motion process of fixed plate
The effect of position.
In the present embodiment, the top of the second hydraulic stem 121 and telescopic rod 122 is between the top of 11 inner cavity of the second cabinet
Bolt, the bottom end of telescopic rod 122 and the surface of fixed plate 123 bolt, and telescopic rod 122 is located at the quadrangle at 123 top of fixed plate,
Such design can guarantee the comprehensive of limit, avoid the occurrence of offset.
In the present embodiment, road roller structure 13 includes mounting rack 131, the bottom bolt of mounting rack 131 and fixed plate 123, peace
The quantity for shelving 131 is two, and the inside of mounting rack 131 is rotatably connected to connecting shaft 132, and connecting shaft 132 is far from mounting rack
131 one end is fixedly connected with roller 133, and the surface of roller 133 offers annular groove 134, and roller 133 is for carrying out
Dataway operation, while the setting of annular groove 134 are pressed, can avoid making broken cement block to two because of comprehensive extruding of roller 133
Side is sprawled, and be ensure that broken rear width of roadway will not generate and is widely varied.
In the present embodiment, the positive left side of water tank 10 offers level window 14, and the right side at 10 top of water tank has been respectively communicated with
Snorkel 15 and filler pipe 16, water tank 10 are communicated with drainpipe 17 on the right side of positive bottom, and level window 14 is for observing water tank 10
Internal situation, snorkel 15 guarantee that dust discharge operation is normally carried out for water tank 10 to be connected to outside air.
In the present embodiment, the two sides of 10 inner wall of water tank offer mounting groove 18, and water tank is provided with filter below 10 inner cavity
Plate 19, the both ends of filter plate 19 are respectively positioned on the inside of mounting groove 18 and are slidably connected between the inner wall of mounting groove 18, mounting groove 18
For installing to filter plate 19, filter plate 19 is used to filter out the mixture of dust and water, can be when its surface dirt mud is excessive
Extraction filter plate 19 is cleared up.
Working principle: operator drives the device and moves ahead, and the first hydraulic stem 51 of control stretches back and forth, the first hydraulic stem 51
It drives crushing rod 53 and 54 road pavement of crushing head to carry out fragmentation procedure by connecting plate 52, while starting blower 81, work produces
The dust of broken generation, is sucked into the inside of water tank 10 by raw negative pressure from cleaner head 84, and the dust inside water tank 10 is integrated with water,
Dirt mud is blocked in the top of filter plate 19, while controlling the elongation of the second hydraulic stem 121, and the second hydraulic stem 121 passes through 123 band of fixed plate
The road roller structure 13 of dynamic lower section drops to road surface, rolls to broken road surface.
While there has been shown and described that the embodiment of the invention patent, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principle and spirit of the invention patent, repaired
Change, replacement and variant, the range of the invention patent is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of novel road construction equipment including driver's cabin (1), is mounted on the pedestal (2) of two sides and is mounted on pedestal (2)
The traveling wheel (3) of inside, it is characterised in that: be equipped with the first cabinet (4) on the left of the driver's cabin (1), first cabinet
(4) top on the inside of is equipped with crushing mechanism (5), and the crushing mechanism (5) is for carrying out pavement breaking work, the crusher
Limited position mechanism (6) are arranged in the side of structure (5), and the position-limit mechanism (6) is used to limit the movement of crushing mechanism (5),
The bottom of first cabinet (4) is fixedly installed with dust hood (7), is provided with dust collection mechanism on the inside of the dust hood (7)
(8), for the dust collection mechanism (8) for carrying out cleaning operation, the bottom on the right side of the dust hood (7) is fixedly connected with support plate
(9), it is provided with water tank (10) at the top of the support plate (9), the bottom on the right side of the driver's cabin (1) is fixedly connected with the second case
Body (11), the top on the inside of second cabinet (11) are equipped with elevating mechanism (12), and the elevating mechanism (12) is for carrying out
Lift adjustment operation, the bottom of the elevating mechanism (12) is equipped with road roller structure (13), the road roller structure (13) be used for into
The operation of walking along the street face flattening-out.
2. a kind of novel road construction equipment according to claim 1, it is characterised in that: the crushing mechanism (5) includes
The top of the first hydraulic stem (51), first hydraulic stem (51) and the first cabinet (4) inner cavity bolts, first hydraulic stem
(51) bottom bolt has connecting plate (52), and the bottom bolt of the connecting plate (52) has crushing rod (53), the crushing rod
(53) bottom bolt has crushing head (54).
3. a kind of novel road construction equipment according to claim 2, it is characterised in that: the position-limit mechanism (6) includes
Sliding sleeve (61), the sliding sleeve (61) are embedded in the two sides on connecting plate (52) surface, and the inside of the sliding sleeve (61) is provided through
Gag lever post (62) is fixedly connected at the top of the top and the first cabinet (4) inner cavity of the gag lever post (62), first cabinet
(4) two sides of inner wall offer limiting slot (63), and the two sides of the connecting plate (52) are fixedly connected to limited block (64), institute
Limited block (64) is stated to be located at the inside of limiting slot (63) and be slidably connected between the inner wall of limiting slot (63).
4. a kind of novel road construction equipment according to claim 1, it is characterised in that: the dust collection mechanism (8) includes
Blower (81), the blower (81) are located at the left side at the top of water tank (10), and the dust flue of the blower (81) is through to water tank
(10) sweep-up pipe of inside, the blower (81) is communicated with hollow tube (82), and the left end of the hollow tube (82) is communicated with branch
(83) are managed on road, and the bottom end of the bypass duct (83) is communicated with cleaner head (84).
5. a kind of novel road construction equipment according to claim 2 or 4, it is characterised in that: the bypass duct (83) with
Crushing head (54) interts setting in the longitudinal direction, and the crushing head (54) is that triplets are arranged, and the number of bypass duct (83)
It measures one more than the number of rows of crushing head (54).
6. a kind of novel road construction equipment according to claim 1, it is characterised in that: the elevating mechanism (12) includes
The two sides of second hydraulic stem (121), second hydraulic stem (121) are provided with telescopic rod (122), second hydraulic stem
(121) bottom end bolt has fixed plate (123), and the both ends of the fixed plate (123) are fixedly connected to sliding block (124), described
It is slidably connected between sliding block (124) and the inner wall of the second cabinet (11).
7. a kind of novel road construction equipment according to claim 6, it is characterised in that: second hydraulic stem (121)
And the top of telescopic rod (122) bolts between the top of the second cabinet (11) inner cavity, the bottom end of the telescopic rod (122) with
The surface of fixed plate (123) bolts, and telescopic rod (122) is located at the quadrangle at the top of fixed plate (123).
8. a kind of novel road construction equipment according to claim 6, it is characterised in that: the road roller structure (13) includes
Mounting rack (131), the bottom bolt of the mounting rack (131) and fixed plate (123), the quantity of the mounting rack (131) is two
It is a, and connecting shaft (132) are rotatably connected on the inside of mounting rack (131), the connecting shaft (132) is far from mounting rack (131)
One end is fixedly connected with roller (133), and the surface of the roller (133) offers annular groove (134).
9. a kind of novel road construction equipment according to claim 1, it is characterised in that: the positive left side of the water tank (10)
Side offers level window (14), and the right side at the top of the water tank (10) has been respectively communicated with snorkel (15) and filler pipe (16), institute
It states and is communicated with drainpipe (17) on the right side of the positive bottom of water tank (10).
10. a kind of novel road construction equipment according to claim 1, it is characterised in that: water tank (10) inner wall
Two sides offer mounting groove (18), are provided with filter plate (19) below water tank (10) inner cavity, the two of the filter plate (19)
End is respectively positioned on the inside of mounting groove (18) and is slidably connected between the inner wall of mounting groove (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737877.1A CN110409268A (en) | 2019-08-12 | 2019-08-12 | A kind of novel road construction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737877.1A CN110409268A (en) | 2019-08-12 | 2019-08-12 | A kind of novel road construction equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110409268A true CN110409268A (en) | 2019-11-05 |
Family
ID=68367063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910737877.1A Pending CN110409268A (en) | 2019-08-12 | 2019-08-12 | A kind of novel road construction equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110409268A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648220A (en) * | 2020-06-16 | 2020-09-11 | 国网安徽省电力有限公司宁国市供电公司 | Early-stage road breaking device for installation of power distribution project |
| CN112227167A (en) * | 2020-09-30 | 2021-01-15 | 周婷婷 | Road and bridge crack repair is with road surface cleaning device |
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| US20120067996A1 (en) * | 2010-08-10 | 2012-03-22 | Technology Licensing Corp. | Method And Device For Installing Synthetic Turf |
| CN207419213U (en) * | 2017-10-16 | 2018-05-29 | 李宁 | A kind of highway quartering hammer |
| CN207973980U (en) * | 2017-12-01 | 2018-10-16 | 四川省兴海达建设工程有限公司 | A kind of bituminous paving reparation vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648220A (en) * | 2020-06-16 | 2020-09-11 | 国网安徽省电力有限公司宁国市供电公司 | Early-stage road breaking device for installation of power distribution project |
| CN111648220B (en) * | 2020-06-16 | 2022-04-19 | 国网安徽省电力有限公司宁国市供电公司 | Early-stage road breaking device for installation of power distribution project |
| CN112227167A (en) * | 2020-09-30 | 2021-01-15 | 周婷婷 | Road and bridge crack repair is with road surface cleaning device |
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