CN110424234A - A kind of road construction expansion joint cutter device - Google Patents
A kind of road construction expansion joint cutter device Download PDFInfo
- Publication number
- CN110424234A CN110424234A CN201910726688.4A CN201910726688A CN110424234A CN 110424234 A CN110424234 A CN 110424234A CN 201910726688 A CN201910726688 A CN 201910726688A CN 110424234 A CN110424234 A CN 110424234A
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- China
- Prior art keywords
- movable stand
- expansion joint
- fixed
- vertical bar
- road construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000005520 cutting process Methods 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000013519 translation Methods 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 10
- 238000000151 deposition Methods 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 abstract description 11
- 230000033001 locomotion Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013439 planning Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0906—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 cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges
- E01C23/0913—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 cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with non-powered tools, e.g. trailed router blade
- E01C23/092—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 cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with non-powered tools, e.g. trailed router blade rotary, e.g. edge trimmer disc
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a kind of road construction expansion joint cutter devices, it is related to technical field of road construction, including movable stand, movable stand lower rotation formula is equipped with traveling wheel, water tank is fixed on movable stand, threaded rod is sequentially connected with by driving mechanism in movable stand, translation mechanism is connected on threaded rod, translation mechanism bottom, which abuts, cutting assembly, cutting assembly includes vertical bar, movable stand bottom is offered for the perforative strip-shaped hole of vertical bar, and vertical bar lower end is rotatably equipped with cutting blade, and movable stand bottom is equipped with depositing dust component；The present invention can not need the movement of movable stand in the cutting process for carrying out expansion joint, the cutting blade traverse motion of rotation is driven by the translation mechanism of setting, it plays and effect is quickly opened up to expansion joint, opening up for expansion joint can be completed in terrace with edge round trip on threaded rod, it is easy to operate to open up process, work efficiency is high, realizes the cutting effect of the expansion joint high quality under movable stand stable state.
Description
Technical field
The present invention relates to workpiece processing technology, specifically a kind of road construction expansion joint cutter device.
Background technique
Road engineering refers to the overall process of the planning, design, construction, maintenance and the management work that carry out using road as object
And its engineering entity being engaged in.The same with the civil engineering of other any classes, road engineering has apparent technology, economy
With the characteristic of management aspect, expansion joint, refer to for prevent building member due to climate temperature change, make structure generate crack or
It destroys along a build joint of the suitable position in building or structures construction joint direction setting, is built in road construction
When, some cement roads need to carry out the cutting at expansion joint.
Authorization Notice No. discloses a kind of road construction expansion joint cutter device for the patent of CN208884330U, including
Shell, the bottom of shell are fixedly installed with bottom plate, and front and the back side of bottom plate are fixedly installed with wheel, and the right side of shell is fixed
Push rod is installed, adjustable plate is fixedly installed at the top of push rod, the front of adjustable plate offers threaded hole, and the inside of shell is fixed
Fixed block is installed, movable block is fixedly installed at the top of fixed block, the top movable of movable block is connected with through outer casing inner wall
The adjusting rod on right side, the bottom of adjusting rod are movably installed with the top through fixed block and extend to external elevating lever, lifting
The outside of bar and the inside fixed installation restraining position ring block for being located at fixed block.Although the device can carry out being cut into for expansion joint
Type, but need to carry out the synchronizing moving of whole device in cutting, it is be easy to cause the decline of expansion joint cut quality, for this purpose,
A kind of road construction expansion joint cutter device is now provided, to solve the above technical problems.
Summary of the invention
The purpose of the present invention is to provide a kind of road construction expansion joint cutter devices, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of road construction expansion joint cutter device, including movable stand, movable stand lower rotation formula are equipped with traveling wheel, movable stand
On be fixed with water tank, threaded rod is sequentially connected with by driving mechanism in movable stand, is connected with translation mechanism on threaded rod,
Translation mechanism bottom, which abuts, cutting assembly, and cutting assembly includes vertical bar, and movable stand bottom offers perforative for vertical bar
Strip-shaped hole, vertical bar lower end are rotatably equipped with cutting blade, and movable stand bottom is equipped with depositing dust component.
As an improvement of the present invention: the translation mechanism includes the terrace with edge that screw thread is set on threaded rod, rib
It is arranged on platform and is fixed with baffle, vertical bar upper end is rotatably equipped with guide wheel, and terrace with edge bottom is offered leads for what guide wheel rolling was embedded
Slot.
As an improvement of the present invention: cage plate is fixed in the vertical bar, movable sleeve, which is equipped with, in vertical bar slides
Set, is fixedly connected with longitudinal spring between sliding sleeve and cage plate.
As an improvement of the present invention: the sliding sleeve sidewall horizontal is fixed with lateral guide rod, covers on lateral guide rod
Equipped with the sleeve fixed with movable stand, crossed strip is fixedly connected between sleeve and lateral guide rod.
As an improvement of the present invention: the driving mechanism includes the turntable driven by motor I, on turntable partially
The heart is hinged with pull rod, and pull rod lower end is hinged with the rack gear being vertically arranged, and engagement, which is connected with to be arranged, on rack gear is fixed on threaded rod
Gear.
As an improvement of the present invention: the depositing dust component includes two sprays being connected to by water pump with water tank
Disk, two shower trays are separately fixed at strip-shaped hole two sides, and shower tray is arranged obliquely.
As an improvement of the present invention: the movable stand side wall is fixed with motor II, is drivingly connected on motor II
There is worm screw, engages and be connected with and the co-axially fixed worm gear of traveling wheel on worm screw.
Compared with prior art, the beneficial effects of the present invention are:
The present invention can not need the movement of movable stand in the cutting process for carrying out expansion joint, be driven by the translation mechanism of setting
The cutting blade traverse motion of rotation plays and quickly opens up effect, terrace with edge round trip on threaded rod to expansion joint
Opening up for expansion joint can be completed, open up that process is easy to operate, and work efficiency is high, realize flexible under movable stand stable state
Stitch the cutting effect of high quality.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the enlarged diagram in the portion A in Fig. 1；
Fig. 3 is fragmentary bottom schematic diagram of the invention；
Fig. 4 is the connection schematic side view of movable stand and shower tray in the present invention；
Fig. 5 is the sectional perspective schematic diagram of translation mechanism in the present invention.
In figure: 1- movable stand, 2- water tank, 3- threaded rod, 4- motor I, 5- turntable, 6- pull rod, 7- gear, 8- rack gear, 9-
Motor II, 10- worm screw, 11- traveling wheel, 12- worm gear, 13- cutting blade, 14- vertical bar, 15- transverse direction guide rod, 16- shower tray,
17- strip-shaped hole, 18- crossed strip, 19- sleeve, 20- guide groove, 21- water pump, 22- fixed column, 23- terrace with edge, 24- guide wheel, 25- set
Plate, 26- sliding sleeve, 27- longitudinal spring, 28- baffle.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment:
Embodiment 1
Fig. 1-5, a kind of road construction expansion joint cutter device, including movable stand 1 are please referred to, 1 lower rotation formula of movable stand is set
There is traveling wheel 11, water tank 2 is fixed on movable stand 1, movable stand 1 is interior to be sequentially connected with threaded rod 3, threaded rod by driving mechanism
Translation mechanism is connected on 3, translation mechanism bottom, which abuts, cutting assembly, and cutting assembly includes vertical bar 14, movable stand 1
Bottom is offered for the perforative strip-shaped hole 17 of vertical bar 14, and 14 lower end of vertical bar is rotatably equipped with cutting blade 13,1 bottom of movable stand
Portion is equipped with depositing dust component.
Movable stand 1 is moved to specified by the present apparatus when the expansion joint for carrying out road surface is cut under the action of traveling wheel 11
Region, then under the driving of driving mechanism, translation mechanism drives cutting assembly to carry out linear movement, and then realizes cutting for rotation
The cutting effect of 13 road pavement of cutting blade realizes quickly opening up for expansion joint.
Specifically, translation mechanism includes the terrace with edge 23 that screw thread is set on threaded rod 3, is arranged on terrace with edge 23 and is fixed with baffle
28,14 upper end of vertical bar is rotatably equipped with guide wheel 24, and 23 bottom of terrace with edge, which is offered, rolls the guide groove 20 being embedded for guide wheel 24.
Threaded rod 3 is driven by driving mechanism to be rotated, and threaded rod 3 drives 23 transverse shifting of terrace with edge being threadedly coupled therewith,
Terrace with edge 23 realizes moving down for vertical bar 14 by abutting guide wheel 24 at this time, i.e. the realization of cutting blade 13 of 14 lower end of vertical bar moves down
And contact road surface and crack, and after guide wheel 24 is rolled to along guide groove 20 and abuts with baffle 28, terrace with edge 23 passes through baffle 28
It pushes cutting assembly integrally to move right, and then realizes that the extension extension to expansion joint opens up.
In addition, being fixed with cage plate 25 in vertical bar 14, movable sleeve is equipped with sliding sleeve 26, sliding sleeve 26 and cage plate in vertical bar 14
Longitudinal spring 27 is fixedly connected between 25,26 sidewall horizontal of sliding sleeve is fixed with lateral guide rod 15, is arranged on lateral guide rod 15
The fixed sleeve 19 with movable stand 1 is fixedly connected with crossed strip 18 between sleeve 19 and lateral guide rod 15.
By above-mentioned setting, when vertical bar 14 is gone up and down, sliding sleeve 26 carries out guide and limit to vertical bar 14, and longitudinal
27 deformation of spring compression or elongation ensure that terrace with edge 23 abuts transmission with the stabilization of guide wheel 24, and the lifting of cutting assembly is very flat
Surely, the lateral guide rod 15 being arranged is slided in cutting assembly transverse shifting along sleeve 19, is realized expansion joint and is extended cutting
Cross spacing, the cutting process at expansion joint is efficient and steady.
Embodiment 2
In order to promote the cutting effect at expansion joint, on the basis of embodiment 1, driving mechanism includes turn driven by motor I4
Disk 5, bias is hinged with pull rod 6 on turntable 5, and 6 lower end of pull rod is hinged with the rack gear 8 being vertically arranged, and engagement is connected with set on rack gear 8
If the gear 7 being fixed on threaded rod 3.
By above-mentioned setting, for motor I4 for driving turntable 5 to rotate, turntable 5 pulls rack gear hinged therewith by pull rod 6
8 up and down reciprocatingly slide, this hour rack 8 is alternately rotated with moving gear 7 together with threaded rod 3 is suitable counterclockwise, and then realizes terrace with edge 23
Traverse motion, enable cutting assembly traverse motion therewith, ensure that the cutting effect at expansion joint.
Fixed dust recycling, the present apparatus are also provided with depositing dust component, specifically include and pass through when in order to reduce expansion joint cutting
Two shower trays 16 that water pump 21 is connected to water tank 2, two shower trays 16 are separately fixed at 17 two sides of strip-shaped hole, and shower tray 16 is oblique
It is down-set.
Water in water tank 2 is passed through pipeline into shower tray 16 by water pump 21, and water flow sprays to obliquely from shower tray 16
The watering and lowering dust effect for opening up region to expansion joint is realized on road surface, avoids the diffusion of dust, while water flow and cutting blade 13
Contact can play the role of good water cooling, and cutting blade 13 is avoided to cross thermal damage.
In order to guarantee the stabilization of the movable stand 1 in the cutting process of expansion joint, motor II9 is fixed in side wall, on motor II9
Drive connection has worm screw 10, engages and is connected with and the co-axially fixed worm gear 12 of traveling wheel 11 on worm screw 10.
By above-mentioned setting, motor II9 drives worm screw 10 to rotate, and worm screw 10 passes through the rotation of worm gear 12 being engaged with and realizes
The rotation of traveling wheel 11 is realized to the mobile effect in the position of movable stand 1, and after closing motor II9, due to worm gear 12 and worm screw 10
The self-locking performance for engaging connection, so that the locked and fixed of traveling wheel 11, guarantee in movable stand 1 when expansion joint is cut firm is not moved
It is dynamic, fully ensure that the cut quality at expansion joint.
In conclusion the present invention can not need the movement of movable stand 1 in the cutting process for carrying out expansion joint, pass through setting
Translation mechanism drive 13 traverse motion of cutting blade of rotation, play and effect, terrace with edge 23 quickly opened up to expansion joint
Opening up for expansion joint can be completed in round trip on threaded rod 3, opens up that process is easy to operate, and work efficiency is high, realizes shifting
The cutting effect of expansion joint high quality under 1 stable state of moving frame.
It should be strongly noted that although this specification is described in terms of embodiments, but not each embodiment
It only contains an independent technical solution, this description of the specification is merely for the sake of clarity, those skilled in the art
It should consider the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms art technology
The other embodiments that personnel are understood that, the preferred embodiment of the technical program above described embodiment only expresses,
Describe more specific and detailed, but it cannot be understood as the limitations to the technical program the scope of the patents.It should be understood that
It is that for those of ordinary skill in the art, without departing from the inventive concept of the premise, several changes can also be made
Property, improvement and substitution, these belong to the protection scope of the technical program.The protection scope of the technical program patent should be with appended
Subject to claim.
Claims (7)
1. a kind of road construction expansion joint cutter device, including movable stand (1), movable stand (1) lower rotation formula is equipped with walking
It takes turns (11), is fixed with water tank (2) on movable stand (1), which is characterized in that be driven and connected by driving mechanism in the movable stand (1)
It is connected to threaded rod (3), translation mechanism is connected on threaded rod (3), translation mechanism bottom, which abuts, cutting assembly, cutting group
Part includes vertical bar (14), and movable stand (1) bottom is offered for vertical bar (14) perforative strip-shaped hole (17), under vertical bar (14)
End is rotatably equipped with cutting blade (13), and movable stand (1) bottom is equipped with depositing dust component.
2. road construction according to claim 1 expansion joint cutter device, which is characterized in that the translation mechanism includes
Screw thread is set in the terrace with edge (23) on threaded rod (3), is arranged and is fixed with baffle (28) on terrace with edge (23), and vertical bar (14) upper end turns
Dynamic to be equipped with guide wheel (24), terrace with edge (23) bottom, which is offered, rolls the guide groove (20) being embedded for guide wheel (24).
3. road construction according to claim 1 expansion joint cutter device, which is characterized in that on the vertical bar (14)
It is fixed with cage plate (25), movable sleeve is equipped with sliding sleeve (26) in vertical bar (14), is fixedly connected between sliding sleeve (26) and cage plate (25)
There are longitudinal spring (27).
4. road construction according to claim 3 expansion joint cutter device, which is characterized in that sliding sleeve (26) side wall
It is horizontally fixed with lateral guide rod (15), the sleeve (19) fixed with movable stand (1), sleeve (19) is arranged on lateral guide rod (15)
Crossed strip (18) are fixedly connected between lateral guide rod (15).
5. road construction according to claim 1 expansion joint cutter device, which is characterized in that the driving mechanism includes
By the turntable (5) of motor I(4) driving, bias is hinged with pull rod (6) on turntable (5), and pull rod (6) lower end is hinged with to be set vertically
The rack gear (8) set, engagement is connected with the gear (7) for being arranged and being fixed on threaded rod (3) on rack gear (8).
6. road construction according to claim 1 expansion joint cutter device, which is characterized in that the depositing dust component includes
Two shower trays (16) being connected to by water pump (21) with water tank (2), two shower trays (16) are separately fixed at strip-shaped hole (17)
Two sides, shower tray (16) are arranged obliquely.
7. road construction according to claim 1 expansion joint cutter device, which is characterized in that movable stand (1) side
Wall is fixed with motor II(9), motor II(9) on be drivingly connected and have worm screw (10), engagement is connected with and traveling wheel on worm screw (10)
(11) co-axially fixed worm gear (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910726688.4A CN110424234B (en) | 2019-08-07 | 2019-08-07 | Expansion joint cutting device for road construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910726688.4A CN110424234B (en) | 2019-08-07 | 2019-08-07 | Expansion joint cutting device for road construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110424234A true CN110424234A (en) | 2019-11-08 |
| CN110424234B CN110424234B (en) | 2022-06-28 |
Family
ID=68414685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910726688.4A Active CN110424234B (en) | 2019-08-07 | 2019-08-07 | Expansion joint cutting device for road construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110424234B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792022A (en) * | 2019-11-28 | 2020-02-14 | 长安大学 | Pavement grooving device |
| CN111827062A (en) * | 2020-07-24 | 2020-10-27 | 吴升 | Quick cutting equipment of concrete road surface shrinkage joint |
| CN112227153A (en) * | 2020-09-21 | 2021-01-15 | 曾龙 | Cement road surface scratch device |
| CN112853906A (en) * | 2021-02-05 | 2021-05-28 | 王晓峰 | Road repair uses road surface cutting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9376776B2 (en) * | 2014-07-14 | 2016-06-28 | Gary Kempken | High-production routing device |
| CN107012774A (en) * | 2017-06-06 | 2017-08-04 | 李建云 | A kind of road and bridge construction road surface cutter device |
| CN107034775A (en) * | 2017-06-13 | 2017-08-11 | 李群 | A kind of road and bridge construction joint-cutting device |
| CN108658441A (en) * | 2018-05-22 | 2018-10-16 | 盛梁科 | A kind of glass board material rectangle cutting device |
| CN108914755A (en) * | 2018-07-20 | 2018-11-30 | 叶永青 | A kind of bridge construction fluting apparatus |
-
2019
- 2019-08-07 CN CN201910726688.4A patent/CN110424234B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9376776B2 (en) * | 2014-07-14 | 2016-06-28 | Gary Kempken | High-production routing device |
| CN107012774A (en) * | 2017-06-06 | 2017-08-04 | 李建云 | A kind of road and bridge construction road surface cutter device |
| CN107034775A (en) * | 2017-06-13 | 2017-08-11 | 李群 | A kind of road and bridge construction joint-cutting device |
| CN108658441A (en) * | 2018-05-22 | 2018-10-16 | 盛梁科 | A kind of glass board material rectangle cutting device |
| CN108914755A (en) * | 2018-07-20 | 2018-11-30 | 叶永青 | A kind of bridge construction fluting apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792022A (en) * | 2019-11-28 | 2020-02-14 | 长安大学 | Pavement grooving device |
| CN111827062A (en) * | 2020-07-24 | 2020-10-27 | 吴升 | Quick cutting equipment of concrete road surface shrinkage joint |
| CN112227153A (en) * | 2020-09-21 | 2021-01-15 | 曾龙 | Cement road surface scratch device |
| CN112853906A (en) * | 2021-02-05 | 2021-05-28 | 王晓峰 | Road repair uses road surface cutting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110424234B (en) | 2022-06-28 |
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Effective date of registration: 20240607 Address after: Room 65B314, Dongsantiao Street, Kuancheng District, Changchun City, Jilin Province, 130000 Patentee after: China Railway Jilin Investment and Construction Co.,Ltd. Country or region after: China Address before: No.96-1, East 1st Street, Yuegang village, Shifo Town, high tech Development Zone, Zhengzhou City, Henan Province, 450000 Patentee before: Wu Di Country or region before: China |