CN109837829A - A kind of highway engineering cement-concrete road-surface groove-carving device - Google Patents
A kind of highway engineering cement-concrete road-surface groove-carving device Download PDFInfo
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- CN109837829A CN109837829A CN201910199996.6A CN201910199996A CN109837829A CN 109837829 A CN109837829 A CN 109837829A CN 201910199996 A CN201910199996 A CN 201910199996A CN 109837829 A CN109837829 A CN 109837829A
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Abstract
The invention discloses a kind of highway engineering cement-concrete road-surface groove-carving devices, it is related to highway engineering technical field, including substrate, transfer is fixedly connected in the middle part of the upper surface of base plate, four edges of the substrate are fixedly connected to regulating device, are fixedly connected to cutting machine in the middle part of the substrate left and right sides.Highway engineering cement-concrete road-surface groove-carving device, by the way that hydraulic cylinder is arranged, the present apparatus can be made to rotate around first bearing, to which the device is easily carried out steering operation, by the way that clockwise and anticlockwise motor is arranged, under the action of synchronous belt, loop coil can be made to rotate, to which screw rod is gone up and down under screw action, pass through switch close in setting, under the collective effect of bolt assembly and adjustment hole, it can make to can be adjusted up and down in height close to switch, when slide bar can make clockwise and anticlockwise motor stop operating close to switch is mutually close with upper to realize the purpose for adjusting cutting machine height, to achieve the purpose that adjust cutting groove depth.
Description
Technical field
The present invention relates to highway engineering technical field, specially a kind of highway engineering is filled with cement-concrete road-surface groove-carving
It sets.
Background technique
Highway engineering refers to the work such as prospecting, measurement, design, construction, maintenance, the management of Highway Structural Material.
In order to increase the frictional force between road surface and wheel, generally need to cut translot, existing coagulating cement to highway
Its groove depth of the patterning apparatus of soil surface is commonly fixed, it has not been convenient to it is adjusted according to the thickness of road surfacing, it is existing
The patterning apparatus of cement concrete pavement is commonly hand-push apparatus, and cutting tilts its scroll wheel and not can be carried out generally in order to prevent
Steering operation, and while needing to be turned in the device, then needs hand to lift the device, increases the amount of labour of work man-hour, is
This is it is proposed that a kind of highway engineering is solved the above problems with cement-concrete road-surface groove-carving device.
Summary of the invention
The object of the present invention is to provide a kind of highway engineering cement-concrete road-surface groove-carving device, has and adjusting is facilitated to carve
Groove depth and the device is made to turn to convenient advantage, solves the patterning apparatus groove depth of existing cement concrete pavement not side
Just it adjusts and the device integrally turns to inconvenient problem.
The present invention is in order to solve the above technical problems, provide the following technical solutions: a kind of highway engineering cement-concrete road
Face patterning apparatus, including substrate are fixedly connected with transfer, four corners of the substrate in the middle part of the upper surface of base plate
Place is fixedly connected to regulating device, and cutting machine, the steering dress are fixedly connected in the middle part of the substrate left and right sides
It sets including hydraulic cylinder, bottom plate, first bearing and antiskid groove.
The regulating device include clockwise and anticlockwise motor, the first belt pulley, synchronous belt, vertical plate, sliding slot, slide bar, bolt assembly,
Upper close switch, adjustment hole, lower close switch, the second belt pulley, loop coil, second bearing, screw rod, scroll wheel and graduation mark.
Further, hydraulic cylinder is fixedly connected in the middle part of the upper surface of base plate, and the output end of hydraulic cylinder runs through base
Plate and the lower section for extending to substrate, bottom plate is placed with below the substrate, and the middle part fixation of the plate upper surface is inlaid with
First bearing, and the outer surface of hydraulic cylinder output end is fixedly connected with the inner ring of first bearing.
By using above-mentioned technical proposal, by the way that hydraulic cylinder is arranged, can by the stretching of hydraulic cylinder output end by bottom plate and
Ground face contact, then hydraulic cylinder output end, which continues to stretch out, can make scroll wheel and cutting machine leave ground, rotate the substrate, this dress at this time
Setting can rotate around first bearing, so that the device is easily carried out steering operation.
Further, four edges of the upper surface of base plate are fixed is inlaid with second bearing, the substrate it is upper
Surface is fixedly connected with four groups of symmetrical vertical plates, and every group of vertical plate is located at the two sides of second bearing, two vertical plate phases
Sliding slot is mutually offered close to the top of one side, the inside of each sliding slot is connected with sliding block compatible with sliding slot,
The inner ring of each second bearing is fixedly connected to loop coil, and the top of loop coil through second bearing and extends to substrate
Top.
By using above-mentioned technical proposal, spiral shell can be effectively avoided under the action of sliding slot and slide bar by the way that vertical plate is arranged
Bar arbitrarily adjusts angle, thus the problem of ensure that scroll wheel is horizontally oriented always, avoiding cutting inclination.
Further, the top of each loop coil is placed with screw rod compatible with loop coil, and the bottom surface of screw rod is passed through
It wears loop coil and extends to the lower section of substrate, each screw rod is threadedly coupled with the inner ring of corresponding loop coil respectively, each described
The bottom end of screw rod passes through pin and is fixedly hinged with scroll wheel, and scroll wheel is located at the lower section of substrate, and two slide bars are mutual
Close one side is fixedly connected with the top of screw rod left and right sides respectively.
It can make the device by scroll wheel is arranged by using above-mentioned technical proposal convenient for being moved forward and backward, reduce use and push away
Move the active force of the device.
Further, the outer surface of each loop coil is fixedly connected to the second belt pulley, and the second belt pulley and
One belt pulley is connected by toothed belt transmission, and the top of the vertical plate left side offers adjustment hole, and adjustment hole and sliding slot phase
Connection, the inside of each adjustment hole have been bolted bolt assembly, and the bottom surface of each bolt assembly is fixed to be connected
It is connected to close to switch, and the upper surface for being located at slide bar close to switch, the lower part of the vertical plate right side is fixedly connected with down
Close to switch, and lower close switch is located at the underface of slide bar.
By using above-mentioned technical proposal, by switch close in setting, in the collective effect of bolt assembly and adjustment hole
Under, close switch can be made to can be adjusted up and down in height, when slide bar can make clockwise and anticlockwise motor stop operating with upper close to switch is mutually close
To realize the purpose of adjusting cutting machine height, to achieve the purpose that adjust cutting groove depth, opened by close under being arranged
It closes, can be finished in the device use, make screw rod that scroll wheel be driven to be automatically stopped clockwise and anticlockwise motor when dropping to minimum point, thus
So that cutting machine is left ground, is moved easily the device.
Further, each sliding slot offers graduation mark far from the one side of loop coil, and the bottom surface of the bottom plate is opened
Equipped with antiskid groove.
Operator can be facilitated intuitively to check the cutting groove by the way that graduation mark is arranged by using above-mentioned technical proposal
Depth, the convenient accurate cutting groove depth that adjusts can increase the frictional force between bottom plate and ground, have by the way that antiskid groove is arranged
Effect prevents bottom plate from leading to slipping phenomenon when being contacted with ground.
Compared with prior art, the highway engineering cement-concrete road-surface groove-carving device have it is following the utility model has the advantages that
1, the present invention is by setting hydraulic cylinder, can by the stretching of hydraulic cylinder output end by bottom plate with face contact, then hydraulic cylinder
Output end, which continues to stretch out, can make scroll wheel and cutting machine leave ground, rotate the substrate at this time, the present apparatus can surround first bearing
Rotation can be made under the action of synchronous belt so that the device is easily carried out steering operation by the way that clockwise and anticlockwise motor is arranged
Loop coil rotation, so that screw rod is gone up and down under screw action, by setting close to switch, in bolt assembly and adjustment hole
Under collective effect, close switch can be made to can be adjusted up and down in height, when slide bar can make clockwise and anticlockwise motor close to switch is mutually close with upper
It stops operating to realize the purpose for adjusting cutting machine height, to achieve the purpose that adjust cutting groove depth.
2, the present invention effectively can avoid screw rod from arbitrarily adjusting angle by the way that vertical plate is arranged under the action of sliding slot and slide bar
Degree, so that the problem of ensure that scroll wheel is horizontally oriented always, avoiding cutting inclination, by the way that scroll wheel is arranged, can make
Convenient for being moved forward and backward, reduction can be made the device using the active force for pushing the device by the way that lower close switch is arranged in the device
With finishing, make screw rod that scroll wheel be driven to be automatically stopped clockwise and anticlockwise motor when dropping to minimum point, so that cutting machine be made to leave ground
Face is moved easily the device, by the way that graduation mark is arranged, operator can be facilitated intuitively to check the depth of the cutting groove, facilitate essence
The frictional force between bottom plate and ground can be increased, effectively prevent bottom plate by the way that antiskid groove is arranged by really adjusting cutting groove depth
Lead to slipping phenomenon when being contacted with ground.
Detailed description of the invention
Fig. 1 is the cross-sectional view of substrate front view of the present invention；
Fig. 2 is the cross-sectional view of regulating device front view of the present invention；
Fig. 3 is vertical plate left view of the present invention；
Fig. 4 is structure of the invention regulating device perspective view.
In figure: 1- substrate, 2- transfer, 201- hydraulic cylinder, 202- bottom plate, 203- first bearing, 204- antiskid groove,
3- regulating device, 301- clockwise and anticlockwise motor, the first belt pulley of 302-, 303- synchronous belt, 304- vertical plate, 305- sliding slot, 306- are sliding
Bar, 307- bolt assembly, close to switch on 308-, 309- adjustment hole, close to switch, the second belt pulley of 311-, 312- under 310-
Loop coil, 313- second bearing, 314- screw rod, 315- scroll wheel, 316- graduation mark, 4- cutting machine.
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.
Please refer to Fig. 1-4, the present invention provides a kind of technical solution: a kind of highway engineering is filled with cement-concrete road-surface groove-carving
It sets, including substrate 1, transfer 2 is fixedly connected in the middle part of 1 upper surface of substrate, four edges of substrate 1 are fixedly connected with
Have regulating device 3, be fixedly connected to cutting machine 4 in the middle part of 1 left and right sides of substrate, transfer 2 include hydraulic cylinder 201,
Bottom plate 202, first bearing 203 and antiskid groove 204.
Regulating device 3 includes clockwise and anticlockwise motor 301, the first belt pulley 302, synchronous belt 303, vertical plate 304, sliding slot 305, slides
Bar 306, bolt assembly 307, upper close switch 308, adjustment hole 309, lower close switch 310, the second belt pulley 311, loop coil
312, second bearing 313, screw rod 314, scroll wheel 315 and graduation mark 316.
Further, it is fixedly connected with hydraulic cylinder 201 in the middle part of 1 upper surface of substrate, and the output end of hydraulic cylinder 201 runs through
Substrate 1 and the lower section for extending to substrate 1, the lower section of substrate 1 are placed with bottom plate 202, and the middle part fixation of 202 upper surface of bottom plate is inlayed
There is first bearing 203, and the outer surface of 201 output end of hydraulic cylinder is fixedly connected with the inner ring of first bearing 203, by the way that liquid is arranged
Cylinder pressure 201, can be by the stretching of 201 output end of hydraulic cylinder by bottom plate 202 and ground face contact, then 201 output end of hydraulic cylinder continues
Stretching can make scroll wheel 315 and cutting machine 4 leave ground, rotate the substrate 1 at this time, and the present apparatus can be revolved around first bearing 203
Turn, so that the device is easily carried out steering operation.
Further, four edges of 1 upper surface of substrate fixation is inlaid with second bearing 313, the upper surface of substrate 1
Four groups of symmetrical vertical plates 304 are fixedly connected with, every group of vertical plate 304 is located at the two sides of second bearing 313, two vertical plates
The top of 304 one sides close to each other offers sliding slot 305, and the inside of each sliding slot 305 is connected with suitable with 305 phase of sliding slot
The sliding block 306 matched, the inner ring of each second bearing 313 is fixedly connected to loop coil 312, and the top of loop coil 312 runs through second
Bearing 313 and the top for extending to substrate 1, can be effective under the action of sliding slot 305 and slide bar 306 by setting vertical plate 304
Avoid screw rod 314 from arbitrarily adjusting angle, to ensure that scroll wheel 315 is horizontally oriented always, avoid cutting inclination
The problem of.
Further, the top of each loop coil 312 is placed with screw rod 314 compatible with loop coil 312, and screw rod 314
Bottom surface through loop coil 312 and extend to the lower section of substrate 1, each screw rod 314 inner ring screw thread with corresponding loop coil 312 respectively
Connection, the bottom end of each screw rod 314 passes through pin and is fixedly hinged with scroll wheel 315, and scroll wheel 315 is located under substrate 1
Side, two slide bars 306 one side close to each other are fixedly connected with the top of 314 left and right sides of screw rod respectively, pass through setting
Scroll wheel 315 can make the device convenient for being moved forward and backward, reduce using the active force for pushing the device.
Further, the outer surface of each loop coil 312 is fixedly connected to the second belt pulley 311, and the second belt pulley 311
It is sequentially connected with the first belt pulley 302 by synchronous belt 303, the top of 304 left side of vertical plate offers adjustment hole 309, and adjusts
Knothole 309 is connected with sliding slot 305, and the inside of each adjustment hole 309 has been bolted bolt assembly 307, each bolt group
The bottom surface of part 307 is fixedly connected to close to switch 308, and the upper surface for being located at slide bar 306 close to switch 308, vertical plate
The lower part of 304 right sides is fixedly connected with lower close switch 310, and the lower underface for being located at slide bar 306 close to switch 310, leads to
It crosses close to switch 308 in setting, under the collective effect of bolt assembly 307 and adjustment hole 309, can make close on switch 308
Lower adjusting height, when slide bar 306 and upper close 308 phase of switch are close to realize the purpose for adjusting 4 height of cutting machine, to reach
The purpose for adjusting cutting groove depth has been arrived, it is lower close to switch 310 by being arranged, it can be finished in the device use, make 314 band of screw rod
Dynamic scroll wheel 315 is automatically stopped clockwise and anticlockwise motor 301 when dropping to minimum point, so that cutting machine 4 be made to leave ground, facilitates shifting
Move the device.
Further, each one side of the sliding slot 305 far from loop coil 312 offers graduation mark 316, the bottom of bottom plate 202
Face offers antiskid groove 204, by the way that graduation mark 316 is arranged, operator can be facilitated intuitively to check the depth of the cutting groove, side
Just accurate to adjust cutting groove depth, by setting antiskid groove 204, the frictional force between bottom plate 202 and ground can be increased, effectively
Prevent bottom plate 202 from leading to slipping phenomenon when being contacted with ground.
Clockwise and anticlockwise motor 301 is the known technology of the extensive utilization and daily life that have disclosed, positive and negative rotation in the present invention
Motor 301 is also known as motor positive and inverse, as long as positive and reverse rotation control circuit figure and its principle analysis will realize that the positive and negative rotation of motor will
Any two-phase being connected in motor three phase mains inlet wire exchanges wiring i.e. and can reach the purpose of reversion, controls clockwise and anticlockwise motor
301 revolving speeds are itself included rotational speed governor, rotational speed governor model JMDM-TDCM.
Hydraulic cylinder 201 is the known technology of the extensive utilization and daily life that have disclosed in the present invention, and hydraulic cylinder 201 is
Hydraulic actuator that hydraulic energy is changed into mechanical energy, doing straight reciprocating motion.
Upper close switch 308 and lower close switch 310 are the extensive utilization having disclosed and daily life in the present invention
Known technology, upper close switch 308 and lower close switch 310 are that one kind can without carrying out mechanically direct contact with moving component
With the position switch of operation, when the sensitive surface of object proximity switch arrives operating distance, does not need Mechanical Contact and application is any
Pressure can make switch motion, to drive DC electric apparatus or provide control instruction to computer plc device.
Cutting machine 4 is the known technology of the extensive utilization and daily life that have disclosed, cutting in this explanation in the present invention
Cutting mill 4 is a kind of combination unit for being driven by a motor cutting sheet rotation.
In use, 4, clockwise and anticlockwise motor 301 and hydraulic cylinder 201 will be cut with municipal power electric connection, upper approach is opened
Pass 308 and lower close switch 310 are electrically connected with clockwise and anticlockwise motor 301, are required in up and down adjustment according to cutting close to switch 308
Position, upper and lower position adjusting can be carried out according to the scale of graduation mark 316 at this time, then start hydraulic cylinder 201 make its output
End output completely, the bottom surface of bottom plate 202 is with ground face contact at this time and scroll wheel 315 and cutting machine 4 are far from ground, and starting is cut
Machine 4 and clockwise and anticlockwise motor 301, clockwise and anticlockwise motor 301 is inverted, and screw rod 314 is transported upwards under the threaded function of loop coil 312 at this time
Dynamic, when the operating distance of switch 308 close in the arrival of the upper surface of slide bar 306, the upper close transmission of switch 308 instruction makes positive and negative
Rotating motor 301 stops operating, and the distance between the bottom surface of 4 cutting sheet of cutting machine and 315 bottom surface of scroll wheel are adjusted to default at this time
Cutting groove depth shrinks the output end of hydraulic cylinder 201 completely, and the cutting sheet of cutting machine 4 enters ground and cut and rolled at this time
Driving wheel 315 and ground touch, and push device advance that road surface cutting cutting movement can be completed, when the device needs to turn to
When, the output end of hydraulic cylinder 201 is fully extended, at this time the bottom surface of bottom plate 202 and ground face contact, and scroll wheel 315 and cutting
Machine 4 far from ground, rotates the device at this time, and the device is rotated around first bearing 203, when the device is rotated to the angle of needs
When spending, clockwise and anticlockwise motor 301 is rotated forward, so that the bottom surface of scroll wheel 315 is lower than the lowest surfaces of cutting machine 4, makes the defeated of hydraulic cylinder 201
Outlet is shunk completely, and scroll wheel 315 and ground touch at this time and bottom plate 202 and cutting machine 4 can push the dress far from ground
It sets and is moved.
Claims (6)
1. a kind of highway engineering cement-concrete road-surface groove-carving device, including substrate (1), in substrate (1) upper surface
Portion is fixedly connected with transfer (2), and four edges of the substrate (1) are fixedly connected to regulating device (3), the base
Cutting machine (4) are fixedly connected in the middle part of plate (1) left and right sides, it is characterised in that: the transfer (2) includes hydraulic
Cylinder (201), bottom plate (202), first bearing (203) and antiskid groove (204)；
The regulating device (3) include clockwise and anticlockwise motor (301), the first belt pulley (302), synchronous belt (303), vertical plate (304),
Sliding slot (305), slide bar (306), bolt assembly (307), upper close switch (308), adjustment hole (309), lower close switch
(310), the second belt pulley (311), loop coil (312), second bearing (313), screw rod (314), scroll wheel (315) and graduation mark
(316).
2. a kind of highway engineering cement-concrete road-surface groove-carving device according to claim 1, it is characterised in that: described
It is fixedly connected with hydraulic cylinder (201) in the middle part of substrate (1) upper surface, and the output end of hydraulic cylinder (201) through substrate (1) and prolongs
The lower section of substrate (1) is extended to, is placed with bottom plate (202) below the substrate (1), the middle part of bottom plate (202) upper surface
Fixation is inlaid with first bearing (203), and the outer surface of hydraulic cylinder (201) output end and the inner ring of first bearing (203) are fixed
Connection.
3. a kind of highway engineering cement-concrete road-surface groove-carving device according to claim 1, it is characterised in that: described
The fixation of four edges of substrate (1) upper surface is inlaid with second bearing (313), and the upper surface of the substrate (1) is fixed to be connected
Four groups of symmetrical vertical plates (304) are connected to, every group of vertical plate (304) is located at the two sides of second bearing (313), and two described vertical
The top of plate (304) one side close to each other offers sliding slot (305), and the inside of each sliding slot (305) is connected with
The inner ring of the compatible sliding block (306) with sliding slot (305), each second bearing (313) is fixedly connected to loop coil
(312), and the top of loop coil (312) runs through second bearing (313) and extends to the top of substrate (1).
4. a kind of highway engineering cement-concrete road-surface groove-carving device according to claim 1, it is characterised in that: each
The top of the loop coil (312) is placed with and loop coil (312) compatible screw rod (314), and the bottom surface of screw rod (314) is run through
Loop coil (312) and the lower section for extending to substrate (1), each screw rod (314) inner ring spiral shell with corresponding loop coil (312) respectively
Line connection, the bottom end of each screw rod (314) passes through pin and is fixedly hinged with scroll wheel (315), and scroll wheel (315) position
In the lower section of substrate (1), two slide bars (306) one side close to each other respectively with screw rod (314) left and right sides
Top is fixedly connected.
5. a kind of highway engineering cement-concrete road-surface groove-carving device according to claim 1, it is characterised in that: each
The outer surface of the loop coil (312) is fixedly connected to the second belt pulley (311), and the second belt pulley (311) and the first belt
(302) to be taken turns to be sequentially connected by synchronous belt (303), the top of vertical plate (304) left side offers adjustment hole (309), and
Adjustment hole (309) is connected with sliding slot (305), and the inside of each adjustment hole (309) has been bolted bolt assembly
(307), the bottom surface of each bolt assembly (307) is fixedly connected to close to switch (308), and upper close switch
(308) it is located at the surface of slide bar (306), the lower part of vertical plate (304) right side is fixedly connected with lower close to switch
(310), and lower approach switchs the underface that (310) are located at slide bar (306).
6. a kind of highway engineering cement-concrete road-surface groove-carving device according to claim 1, it is characterised in that: each
The sliding slot (305) offers graduation mark (316) far from the one side of loop coil (312), and the bottom surface of the bottom plate (202) opens up
There are antiskid groove (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199996.6A CN109837829A (en) | 2019-03-15 | 2019-03-15 | A kind of highway engineering cement-concrete road-surface groove-carving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199996.6A CN109837829A (en) | 2019-03-15 | 2019-03-15 | A kind of highway engineering cement-concrete road-surface groove-carving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109837829A true CN109837829A (en) | 2019-06-04 |
Family
ID=66885904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910199996.6A Pending CN109837829A (en) | 2019-03-15 | 2019-03-15 | A kind of highway engineering cement-concrete road-surface groove-carving device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109837829A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879615A (en) * | 2020-08-06 | 2020-11-03 | 吴天俊 | Concrete compressive strength detection device |
| CN111877110A (en) * | 2020-07-03 | 2020-11-03 | 陈建军 | Highway is road surface joint cutter for construction convenient to loading and unloading blade |
| CN112709116A (en) * | 2020-12-28 | 2021-04-27 | 中交二公局第一工程有限公司 | Dust fall formula concrete road surface joint-cutting device for road bridge construction |
| CN112726363A (en) * | 2020-12-30 | 2021-04-30 | 湖南华泰泓湘工程有限公司 | Pavement cutting equipment and method for highway construction |
| CN112878157A (en) * | 2021-01-12 | 2021-06-01 | 王昱 | Joint cutter for pavement construction |
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| CN207919306U (en) * | 2018-03-10 | 2018-09-28 | 吴旭 | A kind of municipal administration road and bridge construction joint-cutting device |
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| JPH11124816A (en) * | 1997-10-20 | 1999-05-11 | Masashi Ejima | Inclined cutting mechanism of paving road surface cutting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111877110A (en) * | 2020-07-03 | 2020-11-03 | 陈建军 | Highway is road surface joint cutter for construction convenient to loading and unloading blade |
| CN111877110B (en) * | 2020-07-03 | 2021-11-30 | 中国化学工程第十一建设有限公司 | Highway is road surface joint cutter for construction convenient to loading and unloading blade |
| CN111879615A (en) * | 2020-08-06 | 2020-11-03 | 吴天俊 | Concrete compressive strength detection device |
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| CN112709116A (en) * | 2020-12-28 | 2021-04-27 | 中交二公局第一工程有限公司 | Dust fall formula concrete road surface joint-cutting device for road bridge construction |
| CN112726363A (en) * | 2020-12-30 | 2021-04-30 | 湖南华泰泓湘工程有限公司 | Pavement cutting equipment and method for highway construction |
| CN112726363B (en) * | 2020-12-30 | 2022-04-29 | 湖南华泰泓湘工程有限公司 | Pavement cutting equipment and method for highway construction |
| CN112878157A (en) * | 2021-01-12 | 2021-06-01 | 王昱 | Joint cutter for pavement construction |
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Application publication date: 20190604 |